{"product_id":"transtar-2k-hi-performance-acrylic-urethane-primer-gallon","title":"2K Hi-Performance Acrylic Urethane Primer — Gallon","description":"\u003cstyle\u003e\n.pbe-product-guide{--ink:#202124;--muted:#5f6368;--line:#d9dce1;--soft:#f5f6f7;--accent:#c9232d;color:var(--ink);font-size:16px;line-height:1.65;max-width:1180px;margin:0 auto}.pbe-product-guide *{box-sizing:border-box}.pbe-product-guide h2,.pbe-product-guide h3{color:var(--ink);line-height:1.2}.pbe-product-guide h2{font-size:clamp(25px,3vw,36px);margin:0 0 14px}.pbe-product-guide h3{font-size:18px}.pbe-product-guide p{color:var(--muted)}.pbe-intro{border-left:7px solid var(--accent);background:var(--soft);padding:28px 32px;margin-bottom:26px}.pbe-section{padding:26px 0;border-top:1px solid var(--line)}.pbe-table{overflow:auto}.pbe-table table{width:100%;border-collapse:collapse}.pbe-table th,.pbe-table td{text-align:left;padding:11px;border-bottom:1px solid var(--line);white-space:nowrap}.pbe-product-guide dl{display:grid;grid-template-columns:minmax(150px,.45fr) 1fr;gap:0}.pbe-product-guide dt,.pbe-product-guide dd{padding:10px;margin:0;border-bottom:1px solid var(--line)}.pbe-product-guide dt{font-weight:700}.pbe-docs{display:grid;gap:10px}.pbe-doc{display:flex;justify-content:space-between;padding:13px 15px;background:var(--soft);color:var(--ink);text-decoration:none}.pbe-related{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}.pbe-related a{color:var(--ink);text-decoration:none;font-weight:700}.pbe-related img{display:block;width:100%;aspect-ratio:1;object-fit:contain;background:#fff;border:1px solid var(--line);margin-bottom:8px}\n\u003c\/style\u003e\u003cdiv class=\"pbe-product-guide\" data-pbe-brand=\"transtar\" data-pbe-run=\"trasnstar-2026-08-24-publication-01\"\u003e\n\u003csection class=\"pbe-intro\"\u003e\u003ch2\u003e2K Hi-Performance Acrylic Urethane Primer — Gallon\u003c\/h2\u003e\n\u003cp\u003e2K Acrylic Urethane Primer (Gray) is a premium lead\/chromate free, two component acrylic urethane primer-surfacer for basecoat\/clearcoat refinishing. Acrylic Urethane Primer provides excellent fill and build characteristics, and sands easily wet or dry without clogging. 6921 provides an excellent base for your top coat, thus offering excellent topcoat holdout, gloss and D.O.I. Acrylic Urethane Primer can be directly top coated with alkyd enamels, acrylic enamels, urethane enamel basecoat\/clearcoat systems and lacquers.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection class=\"pbe-section\"\u003e\u003ch2\u003eChoose the right option\u003c\/h2\u003e\n\u003cp\u003eConfirm the exact Transtar manufacturer part number, package size, and application requirements before ordering. This item is intentionally kept standalone so customers are not shown unsupported choices.\u003c\/p\u003e\n\u003cdiv class=\"pbe-table\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eManufacturer part number\u003c\/th\u003e\n\u003cth\u003eSold as\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e6921\u003c\/td\u003e\n\u003ctd\u003eGL\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"pbe-section\"\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUnique formula offers superior adhesion and excellent hold out\u003c\/li\u003e\n\u003cli\u003eNo sealing required\u003c\/li\u003e\n\u003cli\u003eQuick drying times\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\u003csection class=\"pbe-section\"\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eActivator\u003c\/dt\u003e\n\u003cdd\u003e6934\/6937 2K Urethane Primer Activator\u003c\/dd\u003e\n\u003cdt\u003eSolids % (Weight)\u003c\/dt\u003e\n\u003cdd\u003e64%\u003c\/dd\u003e\n\u003cdt\u003ePot LIfe\u003c\/dt\u003e\n\u003cdd\u003e1 - 2 hours @ 70°F (21°C) and 50% R.H.\u003c\/dd\u003e\n\u003cdt\u003eMix Ratio\u003c\/dt\u003e\n\u003cdd\u003e4:1:1\u003c\/dd\u003e\n\u003cdt\u003eReducer\u003c\/dt\u003e\n\u003cdd\u003eTranstar Urethane Grade Reducer (TDS600 or TDS601) Note: Reduction with 6700 Series reducer (TDS600) increases the VOC of the product mixture, reduction with 6700-F Series reducer (TDS601) does not increase VOC.\u003c\/dd\u003e\n\u003cdt\u003eReduction\u003c\/dt\u003e\n\u003cdd\u003e10%\u003c\/dd\u003e\n\u003cdt\u003eShelf Life\u003c\/dt\u003e\n\u003cdd\u003e3 years\u003c\/dd\u003e\n\u003c\/dl\u003e\u003c\/section\u003e\n\u003csection class=\"pbe-section\"\u003e\u003ch2\u003eCompatibility and application guidance\u003c\/h2\u003e\n\u003cp\u003e2K Acrylic Urethane Primer (Gray) is a premium lead\/chromate free, two component acrylic urethane primer-surfacer for basecoat\/clearcoat refinishing. Acrylic Urethane Primer provides excellent fill and build characteristics, and sands easily wet or dry without clogging. 6921 provides an excellent base for your top coat, thus offering excellent topcoat holdout, gloss and D.O.I. Acrylic Urethane Primer can be directly top coated with alkyd enamels, acrylic enamels, urethane enamel basecoat\/clearcoat systems and lacquers. Follow the linked Transtar technical data sheet for the complete preparation, mixing, application, and cure procedure.\u003c\/p\u003e\n\u003cp\u003eMatch the exact Transtar manufacturer part number shown above. Follow Transtar's current TDS and SDS for substrate preparation, compatible components, mixing, flash, cure, and safety requirements.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection class=\"pbe-section\"\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow do I choose the correct option?\u003c\/h3\u003e\n\u003cp\u003eMatch the Transtar MPN 6921 and confirm the listed size and application.\u003c\/p\u003e\n\u003ch3\u003eWhere can I find application and safety instructions?\u003c\/h3\u003e\n\u003cp\u003eUse the official Transtar TDS and SDS links on this page before mixing or applying the product.\u003c\/p\u003e\n\u003ch3\u003eIs inventory shown in real time?\u003c\/h3\u003e\n\u003cp\u003eAvailability is controlled by a fresh National Oak capture and published inventory uses a 95% safety buffer.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection class=\"pbe-section\"\u003e\u003ch2\u003eManufacturer documents\u003c\/h2\u003e\n\u003cdiv class=\"pbe-docs\"\u003e\n\u003ca class=\"pbe-doc\" href=\"https:\/\/tat-co.com\/TranstarAutobodyTechnologies\/media\/TATCo\/Product%20Assets\/SDS%20Files\/transtar_ghs_sds_6921.PDF?ext=.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eSDS: 6921\u003c\/span\u003e\u003cspan aria-hidden=\"true\"\u003e↗\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"pbe-doc\" href=\"https:\/\/tat-co.com\/TranstarAutobodyTechnologies\/media\/TATCo\/Product%20Assets\/SDS%20Files\/transtar_ghs_sds_6934.PDF?ext=.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eSDS: 6934\u003c\/span\u003e\u003cspan aria-hidden=\"true\"\u003e↗\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"pbe-doc\" href=\"https:\/\/tat-co.com\/TranstarAutobodyTechnologies\/media\/TATCo\/Product%20Images\/Transtar-6921-2K-Acrylic-Urethan-Prime_TDS.pdf?ext=.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eTDS: English\u003c\/span\u003e\u003cspan aria-hidden=\"true\"\u003e↗\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"pbe-doc\" href=\"https:\/\/tat-co.com\/TranstarAutobodyTechnologies\/media\/TATCo\/Product%20Assets\/Spanish%20Datasheets\/transtar_tds_6921sp.pdf?ext=.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eTDS: Spanish\u003c\/span\u003e\u003cspan aria-hidden=\"true\"\u003e↗\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"pbe-section\"\u003e\u003ch2\u003eRelated Transtar products\u003c\/h2\u003e\n\u003cdiv class=\"pbe-related\"\u003e\n\u003ca href=\"\/products\/transtar-1k-low-voc-speed-sealer\"\u003e\u003cimg src=\"https:\/\/nodonline.nationaloak.com\/media\/catalog\/product\/cache\/c7b67f1ce99d1caa405d0fe7ed968970\/m\/f\/mfrtrm_6091-b.png\" alt=\"1K Low VOC Speed Sealer — Transtar 6091-B\" loading=\"lazy\"\u003e\u003cspan\u003e1K Low VOC Speed Sealer\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/transtar-signature-series-low-v-o-c-sealer\"\u003e\u003cimg src=\"https:\/\/nodonline.nationaloak.com\/media\/catalog\/product\/cache\/c7b67f1ce99d1caa405d0fe7ed968970\/m\/f\/mfrtrm_trm-9524.png\" alt=\"Signature Series Low V.O.C. Sealer — Transtar 9524, Quart\" loading=\"lazy\"\u003e\u003cspan\u003eSignature Series Low V.O.C. Sealer\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/transtar-2k-ez-sand-acrylic-urethane-primer\"\u003e\u003cimg src=\"https:\/\/nodonline.nationaloak.com\/media\/catalog\/product\/cache\/c7b67f1ce99d1caa405d0fe7ed968970\/m\/f\/mfrtrm_transtar_6934.jpg\" alt=\"2K EZ Sand Acrylic Urethane Primer — Transtar 6934, Quart\" loading=\"lazy\"\u003e\u003cspan\u003e2K EZ Sand Acrylic Urethane Primer\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/transtar-euro-classic-primer\"\u003e\u003cimg src=\"https:\/\/tat-co.com\/TranstarAutobodyTechnologies\/media\/TATCo\/Product%20Images\/7241_web_.png?width=1370\u0026amp;height=1370\u0026amp;ext=.png\" alt=\"Euro Classic Primer — Transtar 7271, Gallon\" loading=\"lazy\"\u003e\u003cspan\u003eEuro Classic Primer\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Transtar Autobody Technologies","offers":[{"title":"Default Title","offer_id":45396296433779,"sku":"6921","price":247.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/8546\/7507\/files\/transtar-standalone-6921-1.png?v=1787605839","url":"https:\/\/pbedirect.com\/products\/transtar-2k-hi-performance-acrylic-urethane-primer-gallon","provider":"PBE Direct","version":"1.0","type":"link"}