{"product_id":"mapei-primer-t","title":"Mapei Primer T","description":"\u003cp\u003e\u003cstrong\u003eMapei Primer T All-Purpose Primer for Self-Leveling Underlayments — 1 Quart \/ 2 Gallon\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eMapei Primer T is a low-VOC, magenta-colored, water-based acrylic primer that enhances the performance and adhesion of self-leveling underlayments on nonporous and porous substrates. It's the required prep step before pouring any Mapei SLU — skipping it on nonporous surfaces is one of the most common causes of SLU bond failure. \u003cspan data-state=\"closed\" class=\"inline-flex\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eOne-component and single-coat, it works on a wide variety of substrate conditions for faster turnaround and lower installation costs. The magenta color makes coverage control easy — you can see exactly where you've applied it and where you haven't, eliminating missed spots before the pour. Dries to a clear finish in as little as 2 hours. Low odor, no mixing required for most applications. \u003cspan data-state=\"closed\" class=\"inline-flex\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eApply undiluted over nonabsorbent surfaces — ceramic tile, porcelain, VCT, epoxy moisture barriers, and wood. Dilute with water for porous concrete substrates. Interior use only; do not apply over wet substrates or asbestos-containing materials.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe 1-quart is suited for small patch areas and spot priming. The 2-gallon is the right size for full-floor SLU pours and larger commercial prep work.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1996\/7489\/files\/mapei_primert.pdf?v=1781277661\" target=\"_blank\" rel=\"noopener\"\u003eClick here for Technical Data Sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eSpec\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eBrand\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eMapei\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eProduct\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003ePrimer T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSizes Available\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e1 Quart, 2 Gallon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eType\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eWater-based acrylic primer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eColor\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eMagenta (dries clear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eDry Time\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eAs little as 2 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eApplication Method\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eBrush or roller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eDilution — Nonporous \/ Wood\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eUndiluted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eDilution — Porous Concrete\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e1:1 to 2:1 (water to primer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eDilution — Gypsum\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e2:1 (water to primer); two coats if needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eVOC Content\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eLow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eInterior \/ Exterior\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eInterior only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCertification\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSCS Indoor Air Quality certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eDo I always need to use Primer T before an SLU?\u003c\/strong\u003e Yes, on nonporous surfaces — ceramic tile, porcelain, VCT, and similar — Primer T is required to achieve proper SLU bond. On porous concrete it's still recommended to control absorption and prevent pinholes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eDo I dilute it with water?\u003c\/strong\u003e It depends on the substrate. Apply undiluted over nonporous surfaces, wood, and plywood. Dilute 1:1 to 2:1 (water to primer) over porous concrete. Use a 2:1 dilution over gypsum substrates, applying two coats if needed.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eHow long does it take to dry?\u003c\/strong\u003e As little as 2 hours under normal temperature and humidity conditions. Do not pour SLU until Primer T is fully dry.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWhich size should I buy?\u003c\/strong\u003e The 1-quart covers small patch areas and is practical for spot priming before minor leveling work. The 2-gallon is the better value for full-floor SLU applications and larger commercial installs.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCan I use it on OSB or plywood?\u003c\/strong\u003e Yes — apply undiluted. For plywood and OSB installs, Mapei may also require Mapelath or diamond mesh on top of the primed surface depending on the finished flooring, load, and deflection criteria.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCan it be used outdoors?\u003c\/strong\u003e No — interior use only, dry environments only. Do not apply over wet substrates.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCan I use it over existing adhesive residue?\u003c\/strong\u003e Yes — apply undiluted over dense, nonabsorbent surfaces including well-adhered cutback adhesive, floor-covering adhesive, and polyurethane adhesive residues.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eIs it compatible with all Mapei SLUs?\u003c\/strong\u003e Yes — use before Ultraplan 1 Plus, Novoplan 2 Plus, Ultraplan Easy, and other Mapei cementitious and gypsum-based SLUs. It is also required between multiple layers of Ultraplan 1 Plus.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan class=\"product-sku-search\" id=\"product-sku-search\"\u003eSku: \u003cspan\u003e7493843\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c!-- END FLOORCOMMANDER SKU INSERT --\u003e","brand":"Mapei","offers":[{"title":"1 Quart","offer_id":47794042601666,"sku":"7493843","price":33.99,"currency_code":"USD","in_stock":true},{"title":"2 Gallon","offer_id":47794042634434,"sku":"7493808","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1996\/7489\/files\/mapei_primert_1_quart.png?v=1781278033","url":"https:\/\/flooringmarket.com\/products\/mapei-primer-t","provider":"Flooring Market","version":"1.0","type":"link"}