{"product_id":"car-shine-2k-universal-primer-surfacer-p831-1-gallon-high-build","title":"Car Shine 2K Universal Primer Surfacer P831 – 1 Gallon (High-Build)","description":"\u003cp\u003e\u003cstrong\u003eCar Shine 2K Universal Primer Surfacer P831\u003c\/strong\u003e is a high-build, two-component urethane primer surfacer that fills, levels, and seals bodywork in one efficient step. Mixed with Car Shine 2K Primer Hardener, it builds quickly to bury 180–320 grit scratches, sands easily, and provides an even, sealed foundation for basecoat.\u003c\/p\u003e\u003ch4\u003eKey features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-build fill\u003c\/strong\u003e — levels minor imperfections, sand scratches, and skim-filled repairs fast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal use\u003c\/strong\u003e — adheres over properly prepared steel, aluminum, body filler, fiberglass, and existing finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy sanding\u003c\/strong\u003e — cures to a smooth, non-loading film for quick block and DA sanding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2K urethane durability\u003c\/strong\u003e — strong adhesion and corrosion resistance under topcoats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4:1 mix\u003c\/strong\u003e — combine with Car Shine 2K Primer Hardener (SSH831A) for a workable, productive primer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eMixing \u0026amp; application\u003c\/h4\u003e\u003cp\u003eMix 4 parts primer to 1 part Car Shine 2K Primer Hardener; adjust with compatible reducer as needed. Apply 2–3 coats with flash time between, then sand once cured. Follow the technical data sheet; contains isocyanates — use proper respiratory and skin protection.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Car Shine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e P831 2K Universal Primer Surfacer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardener:\u003c\/strong\u003e Car Shine 2K Primer Hardener (SSH831A), 4:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 1 Gallon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e P831G\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Car Shine","offers":[{"title":"Default","offer_id":44217220530219,"sku":"P831G","price":53.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/0375\/1979\/files\/image_1024_5306a647-ffae-4259-aa4a-c8337dc455ef.webp?v=1781754389","url":"https:\/\/www.unitedfinish.com\/products\/car-shine-2k-universal-primer-surfacer-p831-1-gallon-high-build","provider":"UnitedFinish","version":"1.0","type":"link"}