{"product_id":"mapei-primer-l-acrylic-latex-primer-for-concrete","title":"Mapei Primer L - Acrylic Latex Primer for Concrete (Underlayment Primer)","description":"\u003cstyle\u003e\n.pb-wrap{--pb-line:#e1e3e5;--pb-head:#f6f6f7;max-width:100%}\n.pb-wrap .pb-intro{margin-bottom:20px}\n.pb-acc{border:1px solid var(--pb-line);border-radius:8px;margin:0 0 8px;overflow:hidden}\n.pb-acc\u003esummary{cursor:pointer;padding:14px 16px;font-weight:600;line-height:1.35;\n list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}\n.pb-acc\u003esummary::-webkit-details-marker{display:none}\n.pb-acc\u003esummary::marker{content:\"\"}\n.pb-acc\u003esummary::after{content:\"+\";font-size:22px;font-weight:400;line-height:1;flex:0 0 auto}\n.pb-acc[open]\u003esummary::after{content:\"\\2212\"}\n.pb-acc[open]\u003esummary{border-bottom:1px solid var(--pb-line);background:var(--pb-head)}\n.pb-acc\u003esummary:hover{background:var(--pb-head)}\n.pb-acc .pb-body{padding:16px}\n.pb-acc .pb-body\u003e:first-child{margin-top:0}\n.pb-acc .pb-body\u003e:last-child{margin-bottom:0}\n.pb-q{border:0;border-bottom:1px solid var(--pb-line);border-radius:0;margin:0}\n.pb-q:last-child{border-bottom:0}\n.pb-q\u003esummary{padding:12px 0;font-weight:600}\n.pb-q[open]\u003esummary{background:transparent;border-bottom:0}\n.pb-q\u003esummary:hover{background:transparent;text-decoration:underline}\n.pb-q .pb-body{padding:0 0 12px}\n.pb-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}\n.pb-table{width:100%;border-collapse:collapse;font-size:14px;min-width:380px}\n.pb-table th,.pb-table td{border:1px solid var(--pb-line);padding:8px 10px;\n text-align:left;vertical-align:top}\n.pb-table thead th{background:var(--pb-head)}\n.pb-table caption{caption-side:top;text-align:left;font-weight:600;padding:0 0 8px}\n.pb-note{font-size:13px;opacity:.75;margin-top:16px}\n.pb-wrap a{color:#3b82f6}\n.pb-wrap a:hover{color:#2563eb}\n\u003c\/style\u003e\u003cdiv class=\"pb-wrap\"\u003e\n\u003ch2\u003eMapei Primer L - Acrylic Latex Primer for Concrete\u003c\/h2\u003e\n\u003cdiv class=\"pb-intro\"\u003e\n\u003cp\u003ePrimer L is Mapei's concentrated, solvent-free acrylic latex primer, applied to prepared concrete before a self-leveling underlayment goes down. It improves the bond between a properly profiled concrete slab and the underlayment, and it can also prime poured gypsum underlayments and patches. It is tinted green so you can see where you have covered.\u003c\/p\u003e\n\u003cp\u003ePrimer L is a concentrate: mix 1 part primer with 3 parts clean water, so one 3.79 L (1 US gal) jug makes about 4 US gallons of working primer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eFeatures and Common Uses\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cul\u003e\n\u003cli\u003eConcentrated, solvent-free acrylic primer that improves bonding between profiled concrete and self-leveling underlayment\u003c\/li\u003e\n\u003cli\u003eEasy to apply and quick drying\u003c\/li\u003e\n\u003cli\u003eLow odour and low VOC, 34 g\/L\u003c\/li\u003e\n\u003cli\u003eGreen tint makes it easy to see coverage and confirm the whole slab is primed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommonly used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePriming prepared, fully cured concrete before Mapei self-leveling underlayment\u003c\/li\u003e\n\u003cli\u003ePriming poured gypsum underlayments and patches\u003c\/li\u003e\n\u003cli\u003ePriming cement mortar beds and cement screeds\u003c\/li\u003e\n\u003cli\u003ePriming between layers of Mapei self-leveling underlayment\u003c\/li\u003e\n\u003cli\u003eInterior residential, commercial and institutional floors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eSpecifications\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cdiv class=\"pb-scroll\"\u003e\u003ctable class=\"pb-table\"\u003e\n\u003ccaption\u003eProduct Specifications\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eMapei\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct\u003c\/th\u003e\n\u003ctd\u003ePrimer L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eType\u003c\/th\u003e\n\u003ctd\u003eAcrylic latex primer for concrete, concentrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eColour\u003c\/th\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMixing ratio\u003c\/th\u003e\n\u003ctd\u003e1 part Primer L to 3 parts clean potable water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage (diluted 3:1)\u003c\/th\u003e\n\u003ctd\u003e600 to 800 sq. ft. per 3.79 L (1 US gal); 3,000 to 4,000 sq. ft. per 18.9 L (5 US gal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDrying time\u003c\/th\u003e\n\u003ctd\u003eAbout 3 hours at 73 °F (23 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum open time\u003c\/th\u003e\n\u003ctd\u003e18 hours before underlayment or a second coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eApplication temperature\u003c\/th\u003e\n\u003ctd\u003e50 °F to 90 °F (10 °C to 32 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVOC\u003c\/th\u003e\n\u003ctd\u003e34 g\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShelf life\u003c\/th\u003e\n\u003ctd\u003e2 years, unopened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSizes\u003c\/th\u003e\n\u003ctd\u003e3.79 L (1 US gal) jug; 18.9 L (5 US gal) pail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"pb-note\"\u003eSpecifications are from the Mapei Primer L technical data sheet (edition Oct. 2017); coverage varies with the porosity and profile of the slab. Check Mapei's current data sheet before you start: Source: \u003ca href=\"https:\/\/www.mapei.com\/ca\/en-ca\/products-and-solutions\/products\/detail\/primer-l\" target=\"_blank\" rel=\"noopener\"\u003eMapei Primer L product page and data sheets\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eHow to Install\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003col\u003e\n\u003cli\u003eUse sound, fully cured concrete at least 28 days old. Remove dirt, paint, oil, grease, sealers, curing compounds, laitance and adhesive residue, and profile the surface as the underlayment requires.\u003c\/li\u003e\n\u003cli\u003eDilute 1 part Primer L with 3 parts clean potable water and mix with a low-speed mixer and paddle. High speeds cause foaming. Do not use it at full strength or at any other ratio.\u003c\/li\u003e\n\u003cli\u003ePour the mixed primer onto the floor and work it in with a push broom or brush. Do not roll it on and do not let it puddle. Very porous concrete may need a second coat.\u003c\/li\u003e\n\u003cli\u003eAllow about 3 hours at 73 F (23 C), until a green, transparent film forms with no milky spots. Cooler floors or high humidity take longer.\u003c\/li\u003e\n\u003cli\u003ePour the underlayment or patch within 18 hours. If the primer has been uncovered longer than that, apply a second coat first. Clean tools with water right away.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"pb-note\"\u003eApply only between 50 F and 90 F (10 C and 32 C), keep the surface at least 5 F above the dew point, and do not use on on-grade slabs subject to freeze\/thaw or over asbestos-containing substrates. Full instructions and limitations: Source: \u003ca href=\"https:\/\/www.mapei.com\/ca\/en-ca\/products-and-solutions\/products\/detail\/primer-l\" target=\"_blank\" rel=\"noopener\"\u003eMapei Primer L product page and data sheets\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eDo I dilute Primer L?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eYes. Mix 1 part Primer L with 3 parts clean water. Mapei says not to use it at full strength or at any other ratio.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eHow much floor does one jug or pail cover?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eDiluted 3:1, a 3.79 L (1 US gal) jug covers about 600 to 800 sq. ft. and an 18.9 L (5 US gal) pail covers about 3,000 to 4,000 sq. ft. Porous concrete will use more.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eHow long before I can pour the underlayment?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eWait about 3 hours at 73 F (23 C), until the primer dries to a clear green film. Pour within 18 hours, or prime again.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eCan I roll it on?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eNo. Work it in with a push broom or brush and avoid puddles.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Product\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/mapei-primer-l-acrylic-latex-primer-for-concrete#product\",\"name\":\"Mapei Primer L - Acrylic Latex Primer for Concrete (Underlayment Primer)\",\"url\":\"https:\/\/griffbuildingsupplies.com\/products\/mapei-primer-l-acrylic-latex-primer-for-concrete\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Mapei\"},\"category\":\"Hardware \u003e Building Consumables \u003e Painting Consumables \u003e Primers\",\"description\":\"Mapei Primer L concentrated acrylic primer for concrete before self-leveling underlayment. Dilute 3:1, low VOC. 3.79 L and 18.9 L. Griff, BC.\",\"material\":\"Acrylic latex\",\"image\":\"https:\/\/cdnmedia.mapei.com\/images\/librariesprovider65\/products-images\/4_1_3000221-primer-l-1gal_40e7375fdff0460d8381e882c379cd71.png?sfvrsn=ee00dfb6_0\",\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"Brand\",\"value\":\"Mapei\"},{\"@type\":\"PropertyValue\",\"name\":\"Product\",\"value\":\"Primer L\"},{\"@type\":\"PropertyValue\",\"name\":\"Type\",\"value\":\"Acrylic latex primer for concrete, concentrate\"},{\"@type\":\"PropertyValue\",\"name\":\"Colour\",\"value\":\"Green\"},{\"@type\":\"PropertyValue\",\"name\":\"Mixing ratio\",\"value\":\"1 part Primer L to 3 parts clean potable water\"},{\"@type\":\"PropertyValue\",\"name\":\"Coverage (diluted 3:1)\",\"value\":\"600 to 800 sq. ft. per 3.79 L (1 US gal); 3,000 to 4,000 sq. ft. per 18.9 L (5 US gal)\"},{\"@type\":\"PropertyValue\",\"name\":\"Drying time\",\"value\":\"About 3 hours at 73 \u0026deg;F (23 \u0026deg;C)\"},{\"@type\":\"PropertyValue\",\"name\":\"Maximum open time\",\"value\":\"18 hours before underlayment or a second coat\"},{\"@type\":\"PropertyValue\",\"name\":\"Application temperature\",\"value\":\"50 \u0026deg;F to 90 \u0026deg;F (10 \u0026deg;C to 32 \u0026deg;C)\"},{\"@type\":\"PropertyValue\",\"name\":\"VOC\",\"value\":\"34 g\/L\"},{\"@type\":\"PropertyValue\",\"name\":\"Shelf life\",\"value\":\"2 years, unopened\"},{\"@type\":\"PropertyValue\",\"name\":\"Sizes\",\"value\":\"3.79 L (1 US gal) jug; 18.9 L (5 US gal) pail\"},{\"@type\":\"PropertyValue\",\"name\":\"Dilution\",\"value\":\"1 part Primer L to 3 parts clean potable water\"},{\"@type\":\"PropertyValue\",\"name\":\"Drying time\",\"value\":\"About 3 hours at 73 F (23 C); maximum open time 18 hours\"},{\"@type\":\"PropertyValue\",\"name\":\"Application temperature\",\"value\":\"50 F to 90 F (10 C to 32 C)\"},{\"@type\":\"PropertyValue\",\"name\":\"Shelf life\",\"value\":\"2 years in original unopened packaging\"}]},{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/mapei-primer-l-acrylic-latex-primer-for-concrete#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Do I dilute Primer L?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Mix 1 part Primer L with 3 parts clean water. Mapei says not to use it at full strength or at any other ratio.\"}},{\"@type\":\"Question\",\"name\":\"How much floor does one jug or pail cover?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Diluted 3:1, a 3.79 L (1 US gal) jug covers about 600 to 800 sq. ft. and an 18.9 L (5 US gal) pail covers about 3,000 to 4,000 sq. ft. Porous concrete will use more.\"}},{\"@type\":\"Question\",\"name\":\"How long before I can pour the underlayment?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Wait about 3 hours at 73 F (23 C), until the primer dries to a clear green film. Pour within 18 hours, or prime again.\"}},{\"@type\":\"Question\",\"name\":\"Can I roll it on?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Work it in with a push broom or brush and avoid puddles.\"}}]},{\"@type\":\"HowTo\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/mapei-primer-l-acrylic-latex-primer-for-concrete#howto\",\"name\":\"How to install Mapei Primer L - Acrylic Latex Primer for Concrete (Underlayment Primer)\",\"tool\":[{\"@type\":\"HowToTool\",\"name\":\"Low-speed drill\/mixer with a Jiffy-style paddle\"},{\"@type\":\"HowToTool\",\"name\":\"Clean bucket and potable water for the 1:3 dilution\"},{\"@type\":\"HowToTool\",\"name\":\"Push broom or brush (do not roll the primer on)\"},{\"@type\":\"HowToTool\",\"name\":\"Mapei self-leveling underlayment, such as Novoplan 2 Plus\"}],\"supply\":[{\"@type\":\"HowToSupply\",\"name\":\"Mapei Primer L - Acrylic Latex Primer for Concrete (Underlayment Primer)\"}],\"step\":[{\"@type\":\"HowToStep\",\"position\":1,\"name\":\"Prepare the slab\",\"text\":\"Use sound, fully cured concrete at least 28 days old. Remove dirt, paint, oil, grease, sealers, curing compounds, laitance and adhesive residue, and profile the surface as the underlayment requires.\"},{\"@type\":\"HowToStep\",\"position\":2,\"name\":\"Mix 1:3 with water\",\"text\":\"Dilute 1 part Primer L with 3 parts clean potable water and mix with a low-speed mixer and paddle. High speeds cause foaming. Do not use it at full strength or at any other ratio.\"},{\"@type\":\"HowToStep\",\"position\":3,\"name\":\"Apply with a broom or brush\",\"text\":\"Pour the mixed primer onto the floor and work it in with a push broom or brush. Do not roll it on and do not let it puddle. Very porous concrete may need a second coat.\"},{\"@type\":\"HowToStep\",\"position\":4,\"name\":\"Let it dry to a clear green film\",\"text\":\"Allow about 3 hours at 73 F (23 C), until a green, transparent film forms with no milky spots. Cooler floors or high humidity take longer.\"},{\"@type\":\"HowToStep\",\"position\":5,\"name\":\"Install the underlayment within 18 hours\",\"text\":\"Pour the underlayment or patch within 18 hours. If the primer has been uncovered longer than that, apply a second coat first. Clean tools with water right away.\"}]}]}\u003c\/script\u003e","brand":"Mapei","offers":[{"title":"3.79 L (1 US gal)","offer_id":67835970060607,"sku":"MAP000800","price":64.19,"currency_code":"CAD","in_stock":true},{"title":"18.9 L (5 US gal)","offer_id":67835970093375,"sku":"MAP000900","price":250.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/4901\/7919\/files\/4_1_3000221-primer-l-1gal_40e7375fdff0460d8381e882c379cd71.png?v=1792682356","url":"https:\/\/griffbuildingsupplies.com\/fa\/products\/mapei-primer-l-acrylic-latex-primer-for-concrete","provider":"Griff Building Supplies","version":"1.0","type":"link"}