{"id":2939,"date":"2026-07-20T16:07:08","date_gmt":"2026-07-20T14:07:08","guid":{"rendered":"https:\/\/gekkophotonics.com\/epoxy-reactive-resins\/proof\/"},"modified":"2026-07-20T16:07:08","modified_gmt":"2026-07-20T14:07:08","slug":"proof","status":"publish","type":"page","link":"https:\/\/gekkophotonics.com\/en\/epoxy-reactive-resins\/proof-inline-raman-for-epoxy-isocyanate-reactive-resins\/","title":{"rendered":"Proof \u2013 Inline Raman for Epoxy, Isocyanate &amp; Reactive Resins | Gekko Photonics"},"content":{"rendered":"<style>.elementor-2939 .elementor-element.elementor-element-9d3612d{margin-top:0px;margin-bottom:0px;padding:0px 0px 0px 0px;}.elementor-2939 .elementor-element.elementor-element-a23b2bc > .elementor-element-populated{padding:0px 0px 0px 0px;}@media(min-width:768px){.elementor-2939 .elementor-element.elementor-element-a23b2bc{width:100%;}}<\/style>\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2939\" class=\"elementor elementor-2939 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data-widget_type=\"html.default\">\n\t\t\t\t\t<style>.gk-ms-host,.gk-ms-host>.elementor-container,.gk-ms-col,.gk-ms-col>.elementor-widget-wrap,.gk-ms-col .elementor-widget-html,.gk-ms-col .elementor-widget-html>.elementor-widget-container{margin:0!important;padding:0!important;max-width:none!important;width:100%!important}<\/style>\n<style>\n\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@300;400;500;600;700;800&display=swap');\n\n#gkms{\n  \/* --- brand tokens (from colors_and_type.css) --- *\/\n  --gk-blue:#019FE2; --gk-blue-600:#0088C2; --gk-blue-400:#3DB6E8; --gk-blue-100:#D6EFFA; --gk-blue-50:#EDF8FD;\n  --gk-navy-deep:#2B2E83; --gk-navy-dark:#192A3D; --gk-navy-800:#1F2A4A; --gk-slate:#3A4F66;\n  --gk-gold:#F3C969; --gk-white:#FFFFFF; --gk-off:#FAFBFC;\n  --g50:#F5F6F8; --g100:#E8EBEF; --g200:#D3D8DF; --g300:#B5BCC5; --g400:#8A93A0; --g500:#5E6676; --g600:#3F485A; --g700:#2A3342; --black:#0D0D0D;\n  --ok:#2BB673; --warn:#F3C969; --bad:#E04B4B;\n  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auto;padding:0 24px}\n#gkms .hero .display{color:#fff;max-width:17ch}\n#gkms .hero .display .accent{color:var(--gk-blue-400)}\n#gkms .hero .lead{color:#C8D0DC;max-width:56ch;margin-top:22px}\n#gkms .hero .eyebrow{color:var(--gk-blue-400)}\n#gkms .hero .eyebrow::before{background:var(--gk-blue-400)}\n#gkms .badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 32px}\n#gkms .badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;padding:8px 15px;border-radius:var(--r-pill);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);color:#DCE4EF}\n#gkms .badge b{color:#fff;font-weight:800}\n#gkms .hero-cta{display:flex;flex-wrap:wrap;gap:12px}\n#gkms .scrollcue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);color:rgba(255,255,255,.5);font-size:22px;animation:bob 1.8s var(--ease) infinite}\n@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}\n\n\/* ---- generic reveal ---- *\/\n#gkms .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}\n#gkms .reveal.in{opacity:1;transform:none}\n\n\/* ---- context strip (spec-sheet band) ---- *\/\n#gkms .ctx{background:var(--gk-off)}\n#gkms .ctx-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}\n#gkms .ctx-item{padding:2px 30px}\n#gkms .ctx-item + .ctx-item{border-left:1px solid var(--g200)}\n@media(max-width:820px){#gkms .ctx-grid{grid-template-columns:repeat(2,1fr);gap:34px 0}\n  #gkms .ctx-item{padding:2px 26px}\n  #gkms .ctx-item:nth-child(odd){padding-left:0;border-left:none}\n  #gkms .ctx-item:nth-child(3),#gkms .ctx-item:nth-child(4){padding-top:0}}\n@media(max-width:520px){#gkms .ctx-grid{grid-template-columns:1fr;gap:28px 0}\n  #gkms .ctx-item{padding:0;border-left:none}}\n#gkms .ctx-item:first-child{padding-left:0}\n#gkms .ctx-item .k{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue);margin-bottom:12px}\n#gkms .ctx-item .v{font-weight:800;color:var(--gk-navy-deep);font-size:18px;line-height:1.22;letter-spacing:-.01em}\n#gkms .ctx-item p{font-size:14px;color:var(--gk-slate);margin-top:10px;line-height:1.55}\n\n\/* ---- chemistry tabs ---- *\/\n#gkms .tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}\n#gkms .tab{font-family:var(--font);font-weight:700;font-size:14px;padding:11px 20px;border-radius:var(--r-pill);border:1px solid var(--g200);background:#fff;color:var(--gk-slate);cursor:pointer;transition:.18s var(--ease)}\n#gkms .tab:hover{border-color:var(--gk-blue-400);color:var(--gk-blue)}\n#gkms .tab.active{background:var(--gk-navy-deep);border-color:var(--gk-navy-deep);color:#fff}\n#gkms .tabpanels{position:relative;background:var(--gk-off);border:1px solid var(--g100);border-radius:var(--r-xl);padding:44px}\n@media(max-width:820px){#gkms .tabpanels{padding:26px}}\n#gkms .tabpanel{display:none;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}\n#gkms 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img{width:100%;height:100%;object-fit:cover}\n\n\/* ---- analyte + spectrum explorer ---- *\/\n#gkms .explorer{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:stretch}\n@media(max-width:900px){#gkms .explorer{grid-template-columns:1fr}}\n#gkms .analyte-list{display:flex;flex-direction:column;gap:10px}\n#gkms .analyte{display:flex;justify-content:space-between;align-items:center;gap:14px;text-align:left;font-family:var(--font);\n  background:#fff;border:1px solid var(--g200);border-radius:var(--r-md);padding:16px 18px;cursor:pointer;transition:.18s var(--ease)}\n#gkms .analyte:hover{border-color:var(--gk-blue-400);transform:translateX(3px)}\n#gkms .analyte.active{border-color:var(--gk-blue);background:var(--gk-blue-50);box-shadow:var(--sh-sm)}\n#gkms .analyte .n{font-weight:700;color:var(--gk-navy-deep);font-size:15px}\n#gkms .analyte .band{font-size:12px;font-weight:700;color:var(--gk-blue);font-variant-numeric:tabular-nums;background:var(--gk-blue-100);padding:3px 9px;border-radius:var(--r-pill);white-space:nowrap}\n#gkms .spectrum-panel{background:var(--gk-navy-dark);border-radius:var(--r-xl);padding:28px;color:#fff;display:flex;flex-direction:column;box-shadow:var(--sh-lg)}\n#gkms .spectrum-panel .sp-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}\n#gkms .spectrum-panel .sp-live{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue-400);display:flex;align-items:center;gap:7px}\n#gkms .spectrum-panel .sp-live .dot{width:8px;height:8px;border-radius:999px;background:var(--gk-blue-400);animation:pulse 1.4s infinite}\n@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}\n#gkms .spectrum-panel .sp-read{font-variant-numeric:tabular-nums;font-size:13px;color:#93A1B5}\n#gkms .spec-svg{width:100%;height:200px;margin:10px 0 6px}\n#gkms .spec-svg .grid line{stroke:rgba(255,255,255,.06);stroke-width:1}\n#gkms .spec-svg .trace{fill:none;stroke:var(--gk-blue-400);stroke-width:2}\n#gkms .spec-svg .marker{stroke:var(--gk-gold);stroke-width:2;stroke-dasharray:4 4;opacity:0;transition:opacity .3s}\n#gkms .spec-svg .marker.on{opacity:1}\n#gkms .spec-svg .mlabel{fill:var(--gk-gold);font-size:11px;font-weight:700;opacity:0;transition:opacity .3s}\n#gkms .spec-svg .mlabel.on{opacity:1}\n#gkms .spec-detail{border-top:1px solid rgba(255,255,255,.1);padding-top:16px;margin-top:auto}\n#gkms .spec-detail .sd-name{font-weight:800;color:#fff;font-size:18px}\n#gkms .spec-detail .sd-desc{color:#C8D0DC;font-size:14px;line-height:1.55;margin-top:6px}\n#gkms .spec-axis{font-size:11px;color:#6E7A8C;text-align:center;letter-spacing:.06em}\n\n\/* ---- lab lag vs inline ---- *\/\n#gkms .versus{display:grid;grid-template-columns:1fr 1fr;gap:22px}\n@media(max-width:820px){#gkms .versus{grid-template-columns:1fr}}\n#gkms .vcard{border-radius:var(--r-xl);padding:36px 32px;position:relative;overflow:hidden}\n#gkms 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.vbar{height:10px;border-radius:999px;background:rgba(0,0,0,.08);margin:22px 0 16px;overflow:hidden}\n#gkms .vcard.new .vbar{background:rgba(255,255,255,.12)}\n#gkms .vbar span{display:block;height:100%;border-radius:999px;width:0;transition:width 1.2s var(--ease)}\n#gkms .vcard.old .vbar span{background:var(--bad)}\n#gkms .vcard.new .vbar span{background:var(--gk-blue)}\n#gkms .vcard p{font-size:14px;line-height:1.55}\n#gkms .vcard.old p{color:var(--gk-slate)}\n#gkms .vcard.new p{color:#C8D0DC}\n\n\/* ---- how \/ probe cycle ---- *\/\n#gkms .how-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}\n@media(max-width:900px){#gkms .how-grid{grid-template-columns:1fr}}\n#gkms .cycle{background:var(--gk-navy-dark);border-radius:var(--r-xl);padding:34px;color:#fff;box-shadow:var(--sh-lg)}\n#gkms .cycle .ring{display:flex;justify-content:center;gap:0;margin-bottom:24px}\n#gkms .cyc-step{flex:1;text-align:center;position:relative;padding:0 6px}\n#gkms .cyc-step .ci{width:66px;height:66px;margin:0 auto 12px;border-radius:50%;display:flex;align-items:center;justify-content:center;\n  font-size:26px;background:rgba(255,255,255,.06);border:2px solid rgba(255,255,255,.14);transition:.35s var(--ease)}\n#gkms .cyc-step.on .ci{background:var(--gk-blue);border-color:var(--gk-blue);box-shadow:0 0 0 6px rgba(1,159,226,.22);transform:scale(1.08)}\n#gkms .cyc-step .ct{font-size:13px;font-weight:700;color:#C8D0DC}\n#gkms .cyc-step.on .ct{color:#fff}\n#gkms .cyc-arrow{display:flex;align-items:center;color:rgba(255,255,255,.3);font-size:18px}\n#gkms .cycle .cyc-cap{border-top:1px solid rgba(255,255,255,.1);padding-top:18px;color:#C8D0DC;font-size:14px;line-height:1.6}\n#gkms .cycle .cyc-cap b{color:#fff}\n#gkms .how-points{display:flex;flex-direction:column;gap:22px}\n#gkms .how-point{display:flex;gap:16px;align-items:flex-start}\n#gkms .how-point .hi{flex:0 0 auto;width:46px;height:46px;border-radius:12px;background:var(--gk-blue-50);color:var(--gk-blue);display:flex;align-items:center;justify-content:center;font-size:22px}\n#gkms .how-point h4{font-size:18px;color:var(--gk-navy-deep);margin-bottom:5px}\n#gkms .how-point p{font-size:15px;color:var(--gk-slate);line-height:1.55}\n\n\/* ---- metric band ---- *\/\n#gkms .band{background:linear-gradient(120deg,#141F30 0%,var(--gk-navy-dark) 55%,#1B3048 100%);color:#fff;position:relative;overflow:hidden}\n#gkms .band::before{content:\"\";position:absolute;inset:0;pointer-events:none;\n  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);\n  background-size:56px 56px;mask-image:radial-gradient(70rem 40rem at 30% 0%,#000 0%,transparent 70%)}\n#gkms .band .wrap{position:relative}\n#gkms .band .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}\n@media(max-width:820px){#gkms .band .metrics{grid-template-columns:repeat(2,1fr)}}\n#gkms .metric{border-left:1px solid rgba(255,255,255,.14);padding-left:22px}\n#gkms .metric .mk{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue-400);margin-bottom:12px}\n#gkms .metric .mv{font-size:clamp(44px,4.4vw,68px);font-weight:800;letter-spacing:-.02em;line-height:.95;font-variant-numeric:tabular-nums}\n#gkms .metric .mv .u{font-size:.38em;color:var(--gk-blue-400);margin-left:4px;font-weight:800}\n#gkms .metric p{font-size:14px;color:#C8D0DC;margin-top:14px;line-height:1.45}\n\n\/* ---- proof cards ---- *\/\n#gkms .proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}\n@media(max-width:900px){#gkms .proof-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}}\n#gkms .proof{background:#fff;border:1px solid var(--g100);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);display:flex;flex-direction:column}\n#gkms .proof:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);border-color:var(--gk-blue-100)}\n#gkms .proof .pph{aspect-ratio:16\/10;background:var(--g100);overflow:hidden;position:relative}\n#gkms .proof .pph img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}\n#gkms .proof:hover .pph img{transform:scale(1.045)}\n#gkms .proof .pph .ptag{position:absolute;left:14px;top:14px;font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:rgba(15,22,38,.72);backdrop-filter:blur(6px);padding:6px 11px;border-radius:var(--r-pill)}\n#gkms .proof .pbody{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}\n#gkms .proof h4{color:var(--gk-navy-deep);font-size:18px;line-height:1.25;margin:0 0 12px}\n#gkms .proof p{font-size:14px;color:var(--gk-slate);line-height:1.62}\n#gkms .proof p b{color:var(--gk-navy-deep);font-variant-numeric:tabular-nums}\n\n\/* ---- duel ---- *\/\n#gkms .duel{background:#fff;border:1px solid var(--g100);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md)}\n#gkms .duel-row{display:grid;grid-template-columns:1fr 1.15fr;align-items:stretch}\n#gkms .duel-row .mid{display:none}\n#gkms .duel-row .old,#gkms .duel-row .new{padding:18px 28px;font-size:15px;display:flex;align-items:center}\n#gkms .duel-row .old{color:var(--g500);background:var(--g50);border-bottom:1px solid var(--g100)}\n#gkms .duel-row .new{color:var(--gk-navy-deep);font-weight:600;background:var(--gk-blue-50);border-bottom:1px solid rgba(1,159,226,.14);border-left:2px solid var(--gk-blue)}\n#gkms .duel-row:last-child .old{border-bottom:none}\n#gkms .duel-row:last-child .new{border-bottom:none}\n#gkms .duel-row.duel-head .old,#gkms .duel-row.duel-head .new{font-weight:800;text-transform:uppercase;font-size:12px;letter-spacing:.1em;padding-top:20px;padding-bottom:20px}\n#gkms .duel-row.duel-head .old{background:var(--g100);color:var(--g500)}\n#gkms .duel-row.duel-head .new{background:var(--gk-navy-deep);color:#fff;border-bottom:none;border-left-color:var(--gk-navy-deep)}\n#gkms .duel .ck{color:var(--gk-blue);font-weight:800;margin-right:10px}\n#gkms .duel .xk{color:var(--g300);font-weight:800;margin-right:10px}\n@media(max-width:720px){#gkms .duel-row{grid-template-columns:1fr}#gkms .duel-row .old{border-bottom:1px dashed var(--g200)}}\n\n\/* ---- compliance ---- *\/\n#gkms .reg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}\n@media(max-width:820px){#gkms .reg-grid{grid-template-columns:1fr}}\n#gkms .reg{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);padding:24px}\n#gkms .reg .flag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.06em;padding:5px 11px;border-radius:6px;background:var(--gk-blue);color:#fff;text-transform:uppercase;margin-bottom:14px}\n#gkms .reg h4{font-size:17px;color:#fff;margin-bottom:6px}\n#gkms .reg p{font-size:14px;color:#C8D0DC;line-height:1.55}\n\n\/* ---- replace ---- *\/\n#gkms .repl{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}\n@media(max-width:720px){#gkms .repl{grid-template-columns:1fr}}\n#gkms .repl .item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--g100);border-radius:var(--r-md);padding:18px 20px}\n#gkms .repl .lag{flex:0 0 auto;font-size:12px;font-weight:800;color:var(--bad);background:#FDE9E9;padding:5px 10px;border-radius:6px;white-space:nowrap}\n#gkms .repl .m{font-weight:700;color:var(--gk-navy-deep);font-size:15px}\n#gkms .repl .s{font-size:13px;color:var(--gk-slate);margin-top:3px}\n\n\/* ---- product ---- *\/\n#gkms .product{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}\n@media(max-width:900px){#gkms .product{grid-template-columns:1fr}}\n#gkms .prod-photo{background:radial-gradient(60% 55% at 50% 42%,#101321 0%,#010105 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100%);color:#fff;border-radius:var(--r-xl);padding:64px 48px;text-align:center;position:relative;overflow:hidden}\n#gkms .cta::after{content:\"\";position:absolute;inset:0;background:radial-gradient(40rem 20rem at 80% 120%,rgba(243,201,105,.18),transparent 60%);pointer-events:none}\n#gkms .cta .h2{color:#fff;max-width:20ch;margin:14px auto 0;position:relative}\n#gkms .cta p{color:rgba(255,255,255,.92);max-width:58ch;margin:16px auto 0;position:relative;font-size:17px;line-height:1.6}\n#gkms .cta .hero-cta{justify-content:center;margin-top:30px;position:relative}\n#gkms .cta .sub{margin-top:18px;font-size:13px;color:rgba(255,255,255,.82);position:relative}\n\n\/* ---- workshop strip (secondary, demoted) ---- *\/\n#gkms .strip{background:var(--gk-off);border-top:1px solid var(--g100);border-bottom:1px solid var(--g100)}\n#gkms .strip-in{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;padding:34px 0}\n#gkms .strip .st-l{display:flex;align-items:center;gap:16px}\n#gkms .strip .st-ic{width:48px;height:48px;border-radius:12px;background:var(--gk-blue-50);color:var(--gk-blue);display:flex;align-items:center;justify-content:center;font-size:24px;flex:0 0 auto}\n#gkms .strip h4{font-size:18px;color:var(--gk-navy-deep)}\n#gkms .strip p{font-size:14px;color:var(--gk-slate);margin-top:2px}\n\n\/* ---- footer ---- *\/\n#gkms .foot{background:var(--black);color:#C8D0DC;padding:72px 0 30px}\n#gkms .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}\n@media(max-width:820px){#gkms .foot-grid{grid-template-columns:1fr 1fr}}\n#gkms .foot .flogo{height:42px;width:auto;filter:brightness(0) invert(1);margin-bottom:18px}\n#gkms .foot .ftag{font-size:14px;color:#8A93A0;line-height:1.6;max-width:34ch}\n#gkms .foot h5{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue);margin-bottom:16px}\n#gkms .foot a{display:block;font-size:13px;color:#C8D0DC;line-height:2}\n#gkms .foot a:hover{color:var(--gk-blue-400)}\n#gkms .foot .addr{font-size:13px;color:#8A93A0;line-height:1.7;margin-top:4px}\n#gkms .foot .fbottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#5E6676}\n#gkms .foot .fbottom .tagpl{color:var(--gk-blue);font-weight:700;letter-spacing:.14em;text-transform:uppercase}\n#gkms .mono-note{font-size:12px;color:var(--g400)}\n\n\/* ---- feasibility request form (custom, posts to gekko\/v1\/rsvp) ---- *\/\n#gkms .gkms-form{max-width:560px;margin:28px auto 0;text-align:left;position:relative}\n#gkms .gkms-form-q{font-weight:700;font-size:14px;color:#fff;margin:0 0 12px;text-align:center}\n#gkms .gkms-choices{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}\n#gkms .gkms-opt{display:flex;align-items:center;justify-content:center;text-align:center;gap:8px;padding:13px 10px;border:1.5px solid rgba(255,255,255,.34);border-radius:var(--r-md);background:rgba(255,255,255,.08);color:#fff;font-family:var(--font);font-weight:600;font-size:14px;line-height:1.25;cursor:pointer;transition:.15s var(--ease)}\n#gkms .gkms-opt:hover{border-color:#fff;background:rgba(255,255,255,.16)}\n#gkms .gkms-opt.is-sel{background:#fff;color:var(--gk-navy-deep);border-color:#fff}\n#gkms .gkms-row{display:flex;gap:10px;flex-wrap:wrap}\n#gkms .gkms-email{flex:1 1 240px;min-width:0;padding:14px 15px;height:auto;line-height:1.4;border:1.5px solid rgba(255,255,255,.34);border-radius:var(--r-md);background:rgba(255,255,255,.96);color:var(--gk-navy-deep);font-family:var(--font);font-size:15px}\n#gkms .gkms-email::placeholder{color:var(--g400)}\n#gkms .gkms-email:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.25)}\n#gkms .gkms-submit{flex:0 0 auto;box-shadow:0 6px 18px rgba(13,13,13,.18)}\n#gkms .gkms-hp{position:absolute!important;left:-9999px!important;top:auto;width:1px;height:1px;overflow:hidden;opacity:0}\n#gkms .gkms-consent{display:flex;align-items:flex-start;gap:10px;margin:14px 0 0;font-size:12.5px;color:rgba(255,255,255,.9);line-height:1.5;cursor:pointer;text-align:left}\n#gkms .gkms-consent-cb{flex:none;width:18px;height:18px;margin-top:1px;accent-color:#fff;cursor:pointer}\n#gkms .gkms-consent a{color:#fff;text-decoration:underline}\n#gkms .gkms-req{color:var(--gk-gold)}\n#gkms .gkms-msg{margin:12px 0 0;font-size:14px;min-height:1px;text-align:center;color:#fff}\n#gkms .gkms-msg.err{color:#FFDADA}\n#gkms .gkms-done{max-width:560px;margin:28px auto 0;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.30);border-radius:var(--r-lg);padding:24px;text-align:center;color:#fff;font-size:16px;font-weight:600;line-height:1.5}\n#gkms .cta-alt{margin-top:20px;position:relative}\n#gkms .cta-alt a{color:#fff;font-weight:600;font-size:14px;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:2px}\n#gkms .cta-alt a:hover{border-color:#fff}\n@media(max-width:560px){#gkms .gkms-choices{grid-template-columns:1fr}}\n\n\/* ---- inline line icons (replacing emoji) ---- *\/\n#gkms .ci svg{width:28px;height:28px;display:block;color:#DCE4EF}\n#gkms .cyc-step.on .ci svg{color:#fff}\n#gkms .how-point .hi svg{width:24px;height:24px;display:block}\n#gkms .strip .st-ic svg{width:26px;height:26px;display:block}\n#gkms .gkms-hint{margin:0 0 16px;font-size:13px;color:rgba(255,255,255,.88);line-height:1.55;text-align:center}\n#gkms .gkms-submit{transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}\n#gkms .gkms-submit.is-check{background:var(--ok);border-color:var(--ok);color:#fff;pointer-events:none}\n#gkms .gkms-submit svg{width:18px;height:18px;flex:0 0 auto;margin-right:2px}\n\n\n\/* ---- multi-page additions ---- *\/\n#gkms .subhero{position:relative;overflow:hidden;color:#fff;padding:120px 0 72px;\n  background:linear-gradient(115deg,#0F1626 0%,#192A3D 55%,#1F2A4A 100%)}\n#gkms .subhero .spectrum{position:absolute;inset:0;width:100%;height:100%;opacity:.20;pointer-events:none}\n#gkms .subhero .display{color:#fff;max-width:22ch;font-size:clamp(34px,4.4vw,54px)}\n#gkms .subhero .display .accent{color:var(--gk-blue-400)}\n#gkms .subhero .lead{color:#C8D0DC;max-width:62ch;margin-top:18px}\n#gkms .subhero .eyebrow{color:var(--gk-blue-400)}\n#gkms .subhero .eyebrow::before{background:var(--gk-blue-400)}\n#gkms .crumb{font-size:13px;color:#8A93A0;margin-bottom:18px}\n#gkms .crumb a{color:#C8D0DC}\n#gkms .crumb a:hover{color:#fff}\n#gkms .teaser-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}\n#gkms a.teaser{display:flex;flex-direction:column;background:#fff;border:1px solid var(--g100);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:.2s var(--ease);color:inherit}\n#gkms a.teaser:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:var(--gk-blue-100)}\n#gkms .teaser .tph{height:230px;overflow:hidden}\n#gkms .teaser .tph img{width:100%;height:100%;object-fit:cover}\n#gkms .teaser .tbody{padding:20px 22px 22px}\n#gkms .teaser .tk{font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue);margin-bottom:8px}\n#gkms .teaser h3{font-size:18px;color:var(--gk-navy-deep);margin-bottom:6px}\n#gkms .teaser p{font-size:14px;color:var(--gk-slate);line-height:1.55}\n#gkms .teaser .tgo{margin-top:auto;padding-top:14px;font-size:13.5px;font-weight:700;color:var(--gk-blue)}\n@media(max-width:940px){#gkms .teaser-grid{grid-template-columns:1fr}}\n#gkms .pager{display:flex;justify-content:space-between;gap:14px;max-width:1200px;margin:0 auto;padding:34px 24px}\n#gkms .pager a{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--gk-navy-deep)}\n#gkms .pager a:hover{color:var(--gk-blue)}\n\/* ---- packshot rule: no frame, no background, full device visible ---- *\/\n#gkms .prod-photo{background:none;border:none;box-shadow:none;padding:0;border-radius:0;overflow:visible}\n#gkms .prod-photo::after{display:none}\n#gkms .prod-photo img{max-height:560px;max-width:100%;width:auto;object-fit:contain}\n#gkms .packshot-stage{background:none;border:0;box-shadow:none;padding:0;text-align:center}\n#gkms .packshot-stage img{max-width:100%;height:auto;max-height:520px;object-fit:contain;filter:drop-shadow(0 24px 42px rgba(25,42,61,.28))}\n#gkms .tabpanel.active:not(:has(img)){grid-template-columns:1fr!important;max-width:840px}\n#gkms .product:not(:has(img)){grid-template-columns:1fr!important;max-width:840px}\n#gkms .how-grid:not(:has(img)):not(:has(.cycle)){grid-template-columns:1fr!important;max-width:840px}\n\/* ---- click-to-load YouTube facade ---- *\/\n#gkms .vid-embed{position:relative;width:100%;aspect-ratio:16\/9;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md);background:#0F1626}\n#gkms .vid-embed .yt-facade{display:block;width:100%;height:100%;margin:0;padding:0;border:0;cursor:pointer;background:#0F1626;position:relative}\n#gkms .vid-embed .yt-facade img{width:100%;height:100%;object-fit:cover;display:block}\n#gkms .vid-embed .yt-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}\n#gkms .vid-embed .yt-play svg{width:74px;height:auto;filter:drop-shadow(0 6px 16px rgba(0,0,0,.45));transition:transform .18s var(--ease)}\n#gkms .vid-embed .yt-facade:hover .yt-play svg,#gkms .vid-embed .yt-facade:focus-visible .yt-play svg{transform:scale(1.09)}\n#gkms .vid-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}\n\n<\/style>\n\n<div id=\"gkms\">\n<div id=\"gkms-progress\" style=\"position:fixed;top:0;left:0;height:3px;background:var(--gk-blue);width:0;z-index:200\"><\/div>\n<nav class=\"nav\">\n    <div class=\"nav-in\">\n      <a href=\"\/epoxy-reactive-resins\/\"><img decoding=\"async\" class=\"logo\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/logo-full-5.png\" alt=\"Gekko Photonics\"><\/a>\n      <div class=\"nav-links\">\n      <a href=\"\/epoxy-reactive-resins\/\">Home<\/a>\n      <a href=\"\/epoxy-reactive-resins\/chemistry\/\">Chemistry<\/a>\n      <a href=\"\/epoxy-reactive-resins\/what-we-measure\/\">What we measure<\/a>\n      <a href=\"\/epoxy-reactive-resins\/how-it-works\/\">How it works<\/a>\n      <a href=\"\/epoxy-reactive-resins\/proof\/\" class=\"active\">Proof<\/a>\n      <a href=\"\/epoxy-reactive-resins\/compliance\/\">Compliance<\/a>\n      <a href=\"\/epoxy-reactive-resins\/instrument\/\">Instrument<\/a>\n      <\/div>\n      <a class=\"btn btn-primary\" href=\"#contact\">Test on your samples<\/a>\n    <\/div>\n  <\/nav>\n<header class=\"subhero\">\n  <svg class=\"spectrum\" viewBox=\"0 0 1200 420\" preserveAspectRatio=\"none\" aria-hidden=\"true\">\n    <path d=\"M0,320 L90,312 L150,290 L195,195 L240,305 L315,292 L375,185 L420,305 L480,262 L540,135 L600,290 L660,276 L720,225 L780,296 L840,282 L900,205 L960,300 L1020,288 L1080,240 L1140,292 L1200,270\" fill=\"none\" stroke=\"#019FE2\" stroke-width=\"2\"><\/path>\n    <path d=\"M0,335 L90,328 L150,318 L195,245 L240,325 L315,312 L375,232 L420,322 L480,292 L540,196 L600,312 L660,300 L720,258 L780,318 L840,305 L900,242 L960,320 L1020,308 L1080,272 L1140,314 L1200,295\" fill=\"none\" stroke=\"#fff\" stroke-width=\"1\" stroke-dasharray=\"4 6\"><\/path>\n  <\/svg>\n  <div class=\"hero-in\" style=\"position:relative\">\n    <div class=\"crumb\"><a href=\"\/epoxy-reactive-resins\/\">Epoxy, isocyanate &amp; reactive resins<\/a> \/ Proof<\/div>\n    <span class=\"eyebrow\">Proof<\/span>\n    <h1 class=\"display\" style=\"margin-top:16px\">The endpoint that decides a reactive resin, <span class=\"accent\">read straight off the spectrum.<\/span><\/h1>\n    <p class=\"lead\">NCO% and the R index, the epoxide endpoint and cure state each show up as a specific Raman band - the isocyanate NCO band at ~2270 cm&#8315;&sup1; strong and isolated, the urea band at ~1630 cm&#8315;&sup1; flagging a breach of the reactor's dry atmosphere - read inline, meaning in the reactor itself through an immersion probe, with no manual diisocyanate sample and no 20-to-40-minute titration slot. A Gekko feasibility study builds the CNN chemometric model on your epoxy or isocyanate matrix and hands you the validated model and the numbers.<\/p>\n  <\/div>\n<\/header>\n\n<!-- ===== 01 \u00b7 WHAT A FEASIBILITY STUDY IS ===== -->\n<section id=\"fs-what\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">01<\/span>\n      <span class=\"eyebrow\">Feasibility first<\/span>\n      <h2 class=\"h2\">A validated measurement on your resin - before any hardware.<\/h2>\n      <p class=\"lead\">A Gekko feasibility study reads your reactive endpoint - NCO% and the R index for prepolymers, the epoxide equivalent weight for epoxy, cure state for reactive adhesives - in your chemistry, at the accuracy you need. Inline means the measurement happens in the reactor itself, through an immersion probe, with no manual diisocyanate sample and no 20-to-40-minute titration slot. Real samples, a CNN chemometric model built on your matrix, and a report that hands you the validated model and the numbers.<\/p>\n      <p class=\"lead\" style=\"margin-top:12px\">The study runs on the Spectrally X1 with the same measurement and model stack that later runs on the Spectrally X1 INLINE at your line - at-line on samples first, then with the immersion probe under near-process conditions. What the report shows is what the analyzer reads in production.<\/p>\n    <\/div>\n\n    <div class=\"tabpanels reveal\">\n      <div class=\"tabpanel active\">\n        <div>\n          <span class=\"tp-tag\">The method<\/span>\n          <h3>Your resin, measured against your reference method<\/h3>\n          <p>An epoxy, PU-prepolymer or reactive-adhesive stream is not a generic matrix. The study correlates the Raman spectrum of your resin with the methods you run today - di-n-butylamine titration for NCO%, GC for residual monomer, epoxide-equivalent-weight titration for epoxy - and reports the agreement, the working bands and the validity range on your own chemistry.<\/p>\n          <ul>\n            <li>Measured on a Spectrally X1 Raman spectrometer - 785 nm or 1064 nm laser for strongly fluorescing media, 8 cm&#8315;&sup1; resolution, 300-3500 cm&#8315;&sup1; range<\/li>\n            <li>At-line in vials, in-line with an immersion probe, or on-site at the reactor with a mobile unit<\/li>\n            <li>Model metrics reported against your reference values, with the validity range stated<\/li>\n          <\/ul>\n        <\/div>\n        <div class=\"tp-photo reveal\"><img decoding=\"async\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/gen-epoxy-sampling.jpg\" alt=\"Sampling valve and flange on a stainless epoxy or prepolymer reactor line\"><\/div><\/div>\n    <\/div>\n\n    <div class=\"ctx-grid\" style=\"margin-top:56px\">\n      <div class=\"ctx-item reveal\"><div class=\"k\">Input<\/div><div class=\"v\">Samples or R&amp;D data<\/div><p>Representative process samples - reactor pulls, epoxy resin, PU prepolymer, reactive-adhesive melt - or existing spectra and reference datasets on your matrix.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">Method<\/div><div class=\"v\">Raman + chemometrics<\/div><p>Full-spectrum models - the NCO band at ~2270 cm&#8315;&sup1;, the epoxide and cure chemistry, CNN core - correlated against your reference method on your own matrix.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">Output<\/div><div class=\"v\">Validated model + report<\/div><p>Spectra, band assignments, model metrics versus your reference values, and the validated model on your resin chemistry.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">Commitment<\/div><div class=\"v\">Numbers before hardware<\/div><p>The study delivers the model and the numbers before any instrument decision, so the pilot rests on quantified fact.<\/p><\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 02 \u00b7 WHY RAMAN READS THESE RESINS ===== -->\n<section id=\"fs-why\" class=\"ctx\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">02<\/span>\n      <span class=\"eyebrow\">Why Raman reads these resins<\/span>\n      <h2 class=\"h2\">The endpoint that defines a reactive resin sits on a clean, isolated band.<\/h2>\n      <p class=\"lead\">NCO%, the epoxide endpoint and cure state each map onto a specific Raman band. The isocyanate NCO band at ~2270 cm&#8315;&sup1; is strong and isolated - one of the cleaner targets in vibrational spectroscopy - so it is read directly and continuously in the reactor, the exact information a prepolymer or endpoint question needs and hard to get any other way inline.<\/p>\n    <\/div>\n    <div class=\"how-grid\">\n      <div class=\"how-points\">\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><circle cx=\"12\" cy=\"12\" r=\"6.5\"\/><path d=\"M12 2.5v3M12 18.5v3M2.5 12h3M18.5 12h3\"\/><circle cx=\"12\" cy=\"12\" r=\"1.2\" fill=\"currentColor\" stroke=\"none\"\/><\/svg><\/div><div><h4>NCO% and the R index - the isocyanate band ~2270 cm&#8315;&sup1;<\/h4><p>The isocyanate NCO band at ~2270 cm&#8315;&sup1; is strong and isolated, so NCO% reads directly and continuously and the R index (NCO\/OH ratio) follows from it. Prepolymer drift is caught between batches, in place of the di-n-butylamine titration that takes 20 to 40 minutes in a fume hood. The band is more isolated than the one NIR works from.<\/p><\/div><\/div>\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><circle cx=\"12\" cy=\"12\" r=\"8.5\"\/><path d=\"M12 7.5V12l3 2\"\/><\/svg><\/div><div><h4>Dry-atmosphere breach - the urea band ~1630 cm&#8315;&sup1;<\/h4><p>Moisture reaching the prepolymer forms urea. The appearance of the urea band at ~1630 cm&#8315;&sup1; flags a breach of the reactor's dry atmosphere in real time, from the same spectrum - a direct process alarm rather than an after-the-fact off-spec result.<\/p><\/div><\/div>\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M3 12h3.5l2.5-6.5 4 13 2.5-6.5H21\"\/><\/svg><\/div><div><h4>Epoxide endpoint (EEW), residual and cure - from one spectrum<\/h4><p>The epoxide equivalent weight rides on the same spectrum, read live in the reactor instead of by an offline titration, and residual epichlorohydrin - a carcinogenic reactant - is tracked continuously. For reactive hot-melts and adhesives, the cure state is confirmed in-process rather than inferred from time and temperature.<\/p><\/div><\/div>\n      <\/div>\n      <div class=\"tp-photo reveal\"><img decoding=\"async\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/probe-resin-reactor-1.jpg\" alt=\"Spectrally X1 PROBE flange-mounted on an epoxy or prepolymer reactor line\"><\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 03 \u00b7 THE SAFETY CASE ===== -->\n<section id=\"fs-safety\" class=\"ctx\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">03<\/span>\n      <span class=\"eyebrow\">The safety case<\/span>\n      <h2 class=\"h2\">Every inline result is a diisocyanate sample no one has to draw.<\/h2>\n      <p class=\"lead\">Plants take 3 to 8 manual NCO samples per batch, and each one is an operator exposure to TDI or MDI. The isocyanate that makes the chemistry work also carries among the lowest occupational limits in the EU - TDI at 0.02 mg\/m&sup3; - and since 24 August 2023, EU Reg (EU) 2020\/1149 has made diisocyanate safety training and documentation mandatory. An inline measurement that keeps the probe in the reactor removes the sampling exposure outright.<\/p>\n    <\/div>\n    <div class=\"versus\">\n      <div class=\"vcard old reveal\">\n        <div class=\"vk\">Manual NCO sampling loop<\/div>\n        <div class=\"vtime\">3-8<span class=\"u\">\/batch<\/span><\/div>\n        <div class=\"vbar\"><span data-w=\"100\"><\/span><\/div>\n        <p>Each NCO check means pulling a reactor sample and running a di-n-butylamine titration in a fume hood - 20 to 40 minutes and a trained operator. Every sample drawn is an exposure to TDI or MDI, substances carrying among the lowest occupational limits in the EU (TDI 0.02 mg\/m&sup3;).<\/p>\n      <\/div>\n      <div class=\"vcard new reveal\">\n        <div class=\"vk\">Spectrally inline<\/div>\n        <div class=\"vtime\">0<span class=\"u\">drawn<\/span><\/div>\n        <div class=\"vbar\"><span data-w=\"0\"><\/span><\/div>\n        <p>The immersion probe stays in the reactor 24\/7 and reads NCO% from the ~2270 cm&#8315;&sup1; band in 5 s. No sample leaves the reactor, so the 3 to 8 diisocyanate exposures per batch are removed, and EU Reg (EU) 2020\/1149 documentation follows from a continuous, time-stamped composition record.<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 04 \u00b7 REFERENCE CASE ===== -->\n<section id=\"fs-reference\" class=\"band\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">04<\/span>\n      <span class=\"eyebrow no-line\" style=\"color:var(--gk-blue-400)\">Reference case - Phenol-formaldehyde resins<\/span>\n      <h2 class=\"h2\" style=\"color:#fff;margin-top:12px\">What an inline Raman deployment returns.<\/h2>\n      <p class=\"lead\" style=\"color:#C8D0DC\">These figures are from the phenol-formaldehyde resin portfolio - the fastest payback in the Spectrally installed base, with a self-cleaning reactor probe reading phenol and formaldehyde inline. They show the class of result an inline deployment delivers once the model is on the line, and batch-to-batch variability there held below 1.5%. Your epoxy or isocyanate study builds the validated model and the numbers on your own matrix.<\/p>\n    <\/div>\n    <div class=\"metrics\" id=\"gkms-metrics\">\n      <div class=\"metric\"><div class=\"mk\">Payback &middot; PF resins<\/div><div class=\"mv\" data-to=\"6.5\" data-dec=\"1\" data-suffix=\"mo\">0<span class=\"u\">mo<\/span><\/div><p>Fastest return in the portfolio, on a phenol-formaldehyde resin reactor.<\/p><\/div>\n      <div class=\"metric\"><div class=\"mk\">Annual savings<\/div><div class=\"mv\" data-to=\"180\" data-prefix=\"+EUR&nbsp;\" data-suffix=\"k\">+EUR&nbsp;0<span class=\"u\">k<\/span><\/div><p>Documented on the PF-resin deployment, per year.<\/p><\/div>\n      <div class=\"metric\"><div class=\"mk\">Raw-material losses<\/div><div class=\"mv\" data-to=\"10\" data-prefix=\"-\" data-suffix=\"%\">-0<span class=\"u\">%<\/span><\/div><p>Lower losses once the endpoint is read inline, not after the batch.<\/p><\/div>\n      <div class=\"metric\"><div class=\"mk\">Production waste<\/div><div class=\"mv\" data-to=\"12\" data-prefix=\"-\" data-suffix=\"%\">-0<span class=\"u\">%<\/span><\/div><p>Less off-spec material across the PF-resin campaign.<\/p><\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 05 \u00b7 HOW THE STUDY RUNS ===== -->\n<section id=\"fs-process\" class=\"ctx\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">05<\/span>\n      <span class=\"eyebrow\">How the study runs<\/span>\n      <h2 class=\"h2\">From a crate of samples to a validated model.<\/h2>\n      <p class=\"lead\">The sequence is the same whether the study runs in the Gekko lab or on-site at your plant with a mobile unit.<\/p>\n    <\/div>\n    <div class=\"how-grid\">\n      <div class=\"cycle reveal\">\n        <div style=\"font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gk-blue-400);margin-bottom:18px\">Study sequence<\/div>\n        <div class=\"ring\" id=\"gkms-cycle\">\n          <div class=\"cyc-step on\"><div class=\"ci\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M12 3.5c3 3.5 5 6.2 5 8.8a5 5 0 0 1-10 0c0-2.6 2-5.3 5-8.8z\"\/><\/svg><\/div><div class=\"ct\">Samples<\/div><\/div>\n          <div class=\"cyc-arrow\">&rarr;<\/div>\n          <div class=\"cyc-step\"><div class=\"ci\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"3\" y=\"9\" width=\"18\" height=\"6\" rx=\"1.5\"\/><path d=\"M12 3v6\"\/><circle cx=\"12\" cy=\"3.6\" r=\"1.4\" fill=\"currentColor\" stroke=\"none\"\/><\/svg><\/div><div class=\"ct\">Measure<\/div><\/div>\n          <div class=\"cyc-arrow\">&rarr;<\/div>\n          <div class=\"cyc-step\"><div class=\"ci\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"6.5\" y=\"6.5\" width=\"11\" height=\"11\" rx=\"2\"\/><rect x=\"10\" y=\"10\" width=\"4\" height=\"4\" rx=\"1\"\/><path d=\"M9.5 6.5V4M14.5 6.5V4M9.5 20v-2.5M14.5 20v-2.5M6.5 9.5H4M6.5 14.5H4M20 9.5h-2.5M20 14.5h-2.5\"\/><\/svg><\/div><div class=\"ct\">Model<\/div><\/div>\n          <div class=\"cyc-arrow\">&rarr;<\/div>\n          <div class=\"cyc-step\"><div class=\"ci\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M7 3h7l4 4v14H7z\"\/><path d=\"M14 3v4h4\"\/><path d=\"M10 12h5M10 16h5\"\/><\/svg><\/div><div class=\"ct\">Report<\/div><\/div>\n        <\/div>\n        <div class=\"cyc-cap\">Send representative samples or existing R&amp;D data. Measurement runs on a Spectrally X1 Raman spectrometer - 785 nm or 1064 nm, 8 cm&#8315;&sup1; resolution, 300-3500 cm&#8315;&sup1; - in parallel with your reference method (di-n-butylamine NCO titration, GC). A CNN chemometric model is built on the full spectrum and validated against your reference values. The report closes with <b>the validated model and the numbers on your resin<\/b>.<\/div>\n      <\/div>\n      <div class=\"how-points\">\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"3\" y=\"4.5\" width=\"18\" height=\"12\" rx=\"1.5\"\/><path d=\"M8.5 20h7M12 16.5V20\"\/><path d=\"M7 11l2.5-2.5 2 2L15 7.5\"\/><\/svg><\/div><div><h4>Measured against your reference method<\/h4><p>Study samples are read in parallel on the Raman system and the method you run today - di-n-butylamine NCO titration, GC for residual monomer. The model carries the agreement with those values, and that agreement is what the report shows.<\/p><\/div><\/div>\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"3\" y=\"9\" width=\"18\" height=\"6\" rx=\"1.5\"\/><path d=\"M12 3v6\"\/><circle cx=\"12\" cy=\"3.6\" r=\"1.4\" fill=\"currentColor\" stroke=\"none\"\/><\/svg><\/div><div><h4>The mode matches your process<\/h4><p>At-line in vials for screening, an immersion probe for near-process conditions, or on-site measurement at the reactor with a mobile unit. Once the analyzer is on the line, each result lands in 5 s.<\/p><\/div><\/div>\n        <div class=\"how-point reveal\"><div class=\"hi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M4 7h16M4 12h16M4 17h10\"\/><\/svg><\/div><div><h4>Built for filming, curing media<\/h4><p>Reactive resins can film or cure on the optical window. The self-cleaning retractable probe - retract, rinse, return - keeps the window clean without interrupting measurement, and the 30 mW ATEX laser reads in Zone 0.<\/p><\/div><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- ===== 06 \u00b7 WHAT YOU RECEIVE ===== -->\n<section id=\"fs-deliverables\">\n  <div class=\"wrap\">\n    <div class=\"sec-head reveal\">\n      <span class=\"num\">06<\/span>\n      <span class=\"eyebrow\">Deliverables<\/span>\n      <h2 class=\"h2\">What lands on your desk.<\/h2>\n      <p class=\"lead\">Every study closes with the same set of deliverables - the validated model and the numbers to take to a pilot.<\/p>\n    <\/div>\n\n    <div class=\"ctx-grid\">\n      <div class=\"ctx-item reveal\"><div class=\"k\">01 &middot; Report<\/div><div class=\"v\">Spectra, bands, metrics<\/div><p>Measured spectra with band assignments - the NCO band at ~2270 cm&#8315;&sup1;, the urea band, the epoxide chemistry - model performance against your reference values, and the result on your resin.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">02 &middot; Model<\/div><div class=\"v\">Built on your matrix<\/div><p>A CNN chemometric model scoped to your chemistry - epoxy, PU prepolymer or reactive adhesive - built on the reactive-endpoint bands, with its validity range.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">03 &middot; Recommendation<\/div><div class=\"v\">Mode and installation point<\/div><p>Where the measurement sits - immersion probe in the reactor or the circulation line, ATEX Zone 0 - and the recommended hardware configuration for a pilot.<\/p><\/div>\n      <div class=\"ctx-item reveal\"><div class=\"k\">04 &middot; Method scope<\/div><div class=\"v\">A clean division of labor<\/div><p>Raman owns the reactive endpoint - NCO%, the R index, EEW, residual monomer and cure - read in real time. NCO titration and GC stay the reference methods. Each on what it does best, both feeding one batch record.<\/p><\/div>\n    <\/div>\n\n    <div class=\"product\" style=\"margin-top:64px\">\n      <div class=\"reveal\">\n        <span class=\"eyebrow\">Ready to deploy<\/span>\n        <h2 class=\"h2\" style=\"margin:12px 0 14px\">The hardware the model runs on<\/h2>\n        <p class=\"lead\">A validated model transfers to the process as Spectrally X1 INLINE with the immersion Spectrally X1 PROBE and its self-cleaning module - the retract, rinse and return cycle keeps the optical window clean where a reactive resin would otherwise film it - and Spectrally OS turning the spectrum into NCO%, the R index, epoxide endpoint and cure PASS\/FAIL for your PLC, DCS and MES. The probe stays in the reactor 24\/7, so no operator draws a manual TDI or MDI sample. Same bands, on your line, resolving to single ppm, with deployment typically 3 to 5.5 months.<\/p>\n      <\/div>\n    <div class=\"tp-photo reveal\"><img decoding=\"async\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/gen-resin-plant-wide.jpg\" alt=\"Interior of a reactive-resin production hall with stainless epoxy and prepolymer reactor vessels and process piping\"><\/div><\/div>\n  <\/div>\n<\/section>\n\n<div class=\"pager\">\n    <span><a href=\"\/epoxy-reactive-resins\/how-it-works\/\">&larr; How it works<\/a><\/span>\n    <span><a href=\"\/epoxy-reactive-resins\/compliance\/\">Compliance &rarr;<\/a><\/span>\n  <\/div>\n<section id=\"contact\">\n    <div class=\"wrap\">\n      <div class=\"cta reveal\">\n        <span class=\"eyebrow no-line\" style=\"color:#fff;justify-content:center\">Your next step<\/span>\n        <h2 class=\"h2\">Run the study on your resin.<\/h2>\n        <p>Send representative samples or R&amp;D data from your epoxy, PU-prepolymer or reactive-adhesive process. We measure them against your reference method - di-n-butylamine titration for NCO%, GC for residual monomer, epoxide-equivalent-weight titration for epoxy - build the CNN chemometric model on your matrix and hand you the validated model and the numbers, ready to take to a pilot.<\/p>\n        <form class=\"gkms-form\" data-region=\"m6-epoxy-reactive-resins\" data-region-label=\"Microsite M6 - Epoxy, isocyanate and reactive resins\" data-source=\"microsite-m6-proof\" novalidate>\n          <div class=\"gkms-form-q\">What would you like to do?<\/div>\n          <div class=\"gkms-choices\" role=\"radiogroup\" aria-label=\"What would you like to do?\">\n            <button type=\"button\" class=\"gkms-opt is-sel\" data-val=\"feasibility\" role=\"radio\" aria-checked=\"true\">Feasibility study<\/button>\n            <button type=\"button\" class=\"gkms-opt\" data-val=\"workshop\" role=\"radio\" aria-checked=\"false\">Workshop seat<\/button>\n            <button type=\"button\" class=\"gkms-opt\" data-val=\"info\" role=\"radio\" aria-checked=\"false\">Send info<\/button>\n          <\/div>\n          <p class=\"gkms-hint\" id=\"gkms-hint\"><\/p>\n          <div class=\"gkms-row\">\n            <input type=\"email\" class=\"gkms-email\" name=\"email\" required placeholder=\"you@company.com\" autocomplete=\"email\" aria-label=\"Your work email\">\n            <button type=\"submit\" class=\"btn btn-light gkms-submit\">Send request<\/button>\n          <\/div>\n          <input type=\"text\" class=\"gkms-hp\" name=\"company_hp\" tabindex=\"-1\" autocomplete=\"off\" aria-hidden=\"true\">\n          <label class=\"gkms-consent\"><input type=\"checkbox\" class=\"gkms-consent-cb\" name=\"consent\" required><span>By submitting this form, I confirm I have read and understood the <a href=\"https:\/\/gekkophotonics.com\/en\/privacy-policy\/\" target=\"_blank\" rel=\"noopener\">privacy policy<\/a> <span class=\"gkms-req\">*<\/span><\/span><\/label>\n          <p class=\"gkms-msg\" aria-live=\"polite\"><\/p>\n        <\/form>\n        <p class=\"cta-alt\"><a href=\"https:\/\/gekkophotonics.com\/products\/spectrally-inline\/\">Explore Spectrally X1 INLINE -&gt;<\/a><\/p>\n      <\/div>\n    <\/div>\n  <\/section>\n<footer class=\"foot\">\n    <div class=\"wrap\">\n      <div class=\"foot-grid\">\n        <div>\n          <img decoding=\"async\" class=\"flogo\" src=\"https:\/\/gekkophotonics.com\/wp-content\/uploads\/2026\/07\/logo-full-5.png\" alt=\"Gekko Photonics\">\n          <p class=\"ftag\">Engineering-Driven Analytics. Real-time process composition with inline Raman spectroscopy.<\/p>\n        <\/div>\n        <div>\n          <h5>Platform<\/h5>\n          <a href=\"https:\/\/gekkophotonics.com\/products\/spectrally-inline\/\">Spectrally X1 INLINE<\/a>\n          <a href=\"https:\/\/gekkophotonics.com\/\">Spectrally X1 PROBE<\/a>\n          <a href=\"https:\/\/gekkophotonics.com\/\">Spectrally OS<\/a>\n        <\/div>\n        <div>\n          <h5>This mini-site<\/h5>\n          <a href=\"\/epoxy-reactive-resins\/chemistry\/\">Chemistry<\/a>\n          <a href=\"\/epoxy-reactive-resins\/what-we-measure\/\">What we measure<\/a>\n          <a href=\"\/epoxy-reactive-resins\/how-it-works\/\">How it works<\/a>\n          <a href=\"\/epoxy-reactive-resins\/proof\/\">Proof<\/a>\n          <a href=\"\/epoxy-reactive-resins\/compliance\/\">Compliance<\/a>\n          <a href=\"\/epoxy-reactive-resins\/instrument\/\">Instrument<\/a>\n        <\/div>\n        <div>\n          <h5>Contact<\/h5>\n          <a href=\"mailto:contact@gekkophotonics.com\">contact@gekkophotonics.com<\/a>\n          <a href=\"https:\/\/gekkophotonics.com\/\">gekkophotonics.com<\/a>\n          <div class=\"addr\">NextCorps, 260 E. Main Street, Suite 6000<br>Rochester, NY 14604, USA<\/div>\n        <\/div>\n      <\/div>\n      <div class=\"fbottom\">\n        <span>&copy; 2026 Gekko Photonics Sp. z o.o. 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