{"title":"Masonry \u0026 Block Waterproofers","description":"\u003cdiv class=\"collection-intro\"\u003e\n\u003cp\u003e\u003cstrong\u003eWater soaking into block, brick, stucco or a basement wall?\u003c\/strong\u003e Use a waterproofer made for masonry walls. These products are for vertical concrete, block, brick and stucco. None is made for garage floors or driveways.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/zinsser-watertite-mold-and-mildew-proof-waterproofing-white-gallon\"\u003eZinsser WaterTite\u003c\/a\u003e: oil-based waterproofing paint for interior and exterior concrete, stucco, cement, cinder block and other masonry. Zinsser says it is ideal for interior basement walls, stops up to 34 psi of water pressure, and is not recommended for foot traffic.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/water-repellent-sealer-porous-surface\"\u003eOkon W-2\u003c\/a\u003e: clear, breathable silane-siloxane water repellent for porous surfaces such as medium and normal weight CMU, rough stucco, blasted concrete and concrete brick. Not for glazed or non-porous surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seal-krete-original-waterproofing-primer-sealer-clear-gallon\"\u003eSeal-Krete Original\u003c\/a\u003e: penetrating clear satin primer\/sealer for above-grade vertical surfaces, or as a primer on horizontal surfaces. Not for below-grade use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrep steps\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eLet new masonry cure: 28 days before Okon W-2, and at least 30 days before WaterTite.\u003c\/li\u003e\n\u003cli\u003eClean: Okon W-2 goes on surfaces that are unsealed, clean (free of dirt, waxes and oils) and sound. \u003ca href=\"\/products\/liquid-tsp-substitute-concentrate\"\u003eSavogran Liquid TSP Substitute\u003c\/a\u003e is a cleaner Savogran lists for concrete.\u003c\/li\u003e\n\u003cli\u003eKill mold and mildew: Zinsser says to remove it with 1 cup of household bleach per gallon of water or a mildew cleaner.\u003c\/li\u003e\n\u003cli\u003eRemove efflorescence: Zinsser says the white powdery deposit must come off before WaterTite.\u003c\/li\u003e\n\u003cli\u003ePatch first: Zinsser says all holes and cracks, especially active water leaks, must be patched before WaterTite. For dry cracks in walls, see \u003ca href=\"\/collections\/concrete-crack-joint-repair\"\u003eConcrete Crack \u0026amp; Joint Repair\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eMore: \u003ca href=\"\/collections\/clear-concrete-sealers\"\u003eclear concrete sealers\u003c\/a\u003e for patios and walkways, \u003ca href=\"\/collections\/seal-krete\"\u003eSeal-Krete\u003c\/a\u003e, \u003ca href=\"\/collections\/okon\"\u003eOkon\u003c\/a\u003e, and all \u003ca href=\"\/collections\/concrete-masonry-sealers\"\u003econcrete and masonry solutions\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n","products":[{"product_id":"water-repellent-sealer-porous-surface","title":"Zinsser Okon W-2 Water Repellent Concrete \u0026 Masonry Sealer Gallon","description":"\u003ch2\u003eZinsser Okon W-2 Water Repellent Concrete \u0026amp; Masonry Sealer Gallon\u003c\/h2\u003e\n\u003cp\u003eFormulated for use on medium and normal weight concrete block, rough stucco, and cast stone. Protects against water intrusion, efflorescence and freeze-thaw damage. Water-based, low VOC, breathable, clear and non-yellowing.\u003c\/p\u003e\n\u003ch3\u003eFeatures \u0026amp; details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eZinsser Okon Water-Repellent Sealer, 1 gal Container, Clear, Liquid\u003c\/li\u003e\n  \u003cli\u003eFormulated for use on medium and normal weight concrete block, rough stucco, and cast stone\u003c\/li\u003e\n  \u003cli\u003eProtects against water intrusion, efflorescence and freeze-thaw damage\u003c\/li\u003e\n  \u003cli\u003eWater-based, low VOC, breathable, clear and non-yellowing\u003c\/li\u003e\n  \u003cli\u003eProprietary blend of acrylic micro emulsions and a silane-siloxane solution\u003c\/li\u003e\n  \u003cli\u003eMicro-emulsions penetrate the surface to establish a water repelling barrier in the subsurface of the concrete and masonry\u003c\/li\u003e\n  \u003cli\u003eHelps protect porous concrete and masonry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuild the cart around the prep, application, and cleanup steps so you can conquer the weekend with fewer store runs.\u003c\/p\u003e\n\u003cp\u003eBuild the rest of your project cart with \u003ca href=\"\/collections\/protective-finishes-topcoats\"\u003etopcoats and clear finishes\u003c\/a\u003e.\u003c\/p\u003e","brand":"Zinsser","offers":[{"title":"Default Title","offer_id":53527989911862,"sku":"321-034","price":47.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/9750\/0726\/files\/749505920016.jpg?v=1767458754"},{"product_id":"seal-krete-original-waterproofing-primer-sealer-clear-gallon","title":"Seal-Krete Original Waterproofing Primer\/Sealer, Clear, Gallon","description":"\u003cp\u003e\u003cstrong\u003eSeal-Krete Original Waterproofing Primer\/Sealer, Clear, Gallon\u003c\/strong\u003e is intended for interior\/exterior use. \u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eClear satin sealer\u003c\/li\u003e\n\u003cli\u003eMilky white during application, dries clear\u003c\/li\u003e\n\u003cli\u003eWater repellent\u003c\/li\u003e\n\u003cli\u003eCan be used as primer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest for\u003c\/h3\u003e\u003cp\u003eAbove-grade vertical brick; Stucco; Concrete; Vinyl siding; Aluminum siding; Chalky surfaces; Horizontal surfaces as primer\u003c\/p\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eColor or finish\u003c\/th\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelected size\u003c\/th\u003e\n\u003ctd\u003eGallon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBase\u003c\/th\u003e\n\u003ctd\u003ewater-based acrylic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003einterior\/exterior\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoverage\u003c\/th\u003e\n\u003ctd\u003e80-300 sq ft per gallon, depending on porosity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTouch dry\u003c\/th\u003e\n\u003ctd\u003e2-4 hours dry time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecoat\u003c\/th\u003e\n\u003ctd\u003e2 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication conditions\u003c\/th\u003e\n\u003ctd\u003eDo not apply if temperature will fall below 50°F within 24 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoats\u003c\/th\u003e\n\u003ctd\u003eAt least 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApply with\u003c\/th\u003e\n\u003ctd\u003eBrush; Roller; Garden sprayer; Airless sprayer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThinning\u003c\/th\u003e\n\u003ctd\u003eDo not dilute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCleanup\u003c\/th\u003e\n\u003ctd\u003eSoap and water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVOC\u003c\/th\u003e\n\u003ctd\u003e\u0026lt;49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTopcoat compatibility\u003c\/th\u003e\n\u003ctd\u003eLatex, oil-based or elastomeric coating when dry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer part #\u003c\/th\u003e\n\u003ctd\u003e100001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eHow to apply\u003c\/h3\u003e\u003cp\u003eStart with the manufacturer's preparation steps: Clean and dry; Remove loose paint and excessive chalk; Repair cracks.\u003c\/p\u003e\u003ch3\u003eGood to know\u003c\/h3\u003e\u003cp\u003eUse limits: Below-grade use; Swimming pools; Bird baths; Water features; Cedar; Redwood; Hydrostatic pressure; Very porous decorative block.\u003c\/p\u003e\u003ch3\u003eQuestions\u003c\/h3\u003e\u003ch4\u003eHow much will I need?\u003c\/h4\u003e\u003cp\u003eUse these manufacturer coverage figures: 80-300 sq ft per gallon, depending on porosity. Match the figure to the container size, and account for the stated number of coats.\u003c\/p\u003e\u003ch4\u003eWhen can I apply another coat?\u003c\/h4\u003e\u003cp\u003eThe listed manufacturer recoat guidance is 2 hours. Follow the application conditions and instructions for this product.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.rustoleum.com\/product-catalog\/consumer-brands\/seal-krete\/vertical-waterproofing\/original\" target=\"_blank\" rel=\"noopener\"\u003eManufacturer directions and product information\u003c\/a\u003e\u003c\/p\u003e","brand":"Seal-Krete","offers":[{"title":"Default Title","offer_id":67665868980534,"sku":"100001","price":45.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/9750\/0726\/files\/015944100013_1_0824.jpg?v=1791527809"},{"product_id":"zinsser-watertite-mold-and-mildew-proof-waterproofing-white-gallon","title":"Zinsser Watertite Mold \u0026 Mildew Proof Waterproofing, White, Gallon","description":"\u003cp\u003e\u003cstrong\u003eZinsser Watertite Mold \u0026amp; Mildew Proof Waterproofing, White, Gallon\u003c\/strong\u003e is intended for interior and exterior use. \u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eResists up to 34 PSI water pressure\u003c\/li\u003e\n\u003cli\u003eMildewcide protects paint film only\u003c\/li\u003e\n\u003cli\u003eSmooth non-gritty finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest for\u003c\/h3\u003e\u003cp\u003eConcrete; Stucco; Cement; Cinder block; Masonry; Basement walls; Exterior foundations; Retaining walls\u003c\/p\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eColor or finish\u003c\/th\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelected size\u003c\/th\u003e\n\u003ctd\u003eGallon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBase\u003c\/th\u003e\n\u003ctd\u003eoil-based waterproofing paint with Portland cement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003einterior and exterior\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoverage\u003c\/th\u003e\n\u003ctd\u003e75 sq ft\/gallon first coat; 100 sq ft\/gallon second coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTouch dry\u003c\/th\u003e\n\u003ctd\u003e1 hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecoat\u003c\/th\u003e\n\u003ctd\u003e4 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFull cure\u003c\/th\u003e\n\u003ctd\u003e7-14 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication conditions\u003c\/th\u003e\n\u003ctd\u003e50-90°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoats\u003c\/th\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApply with\u003c\/th\u003e\n\u003ctd\u003eBrush; Roller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVOC\u003c\/th\u003e\n\u003ctd\u003e\u0026lt;400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer part #\u003c\/th\u003e\n\u003ctd\u003e5001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eHow to apply\u003c\/h3\u003e\u003cp\u003eStart with the manufacturer's preparation steps: Remove mold and mildew; Remove unsound coating; Repair cracks and holes.\u003c\/p\u003e\u003ch3\u003eGood to know\u003c\/h3\u003e\u003cp\u003eUse limits: Foot traffic; Potable water tanks; Cisterns; Bird baths; Swimming pools.\u003c\/p\u003e\u003cp\u003eKeep the recoat time and full cure time separate when planning the project. The recoat figure tells you when another coat can be applied; it does not replace the full cure guidance.\u003c\/p\u003e\u003ch3\u003eQuestions\u003c\/h3\u003e\u003ch4\u003eHow much will I need?\u003c\/h4\u003e\u003cp\u003eUse these manufacturer coverage figures: 75 sq ft\/gallon first coat; 100 sq ft\/gallon second coat. Match the figure to the container size, and account for the stated number of coats.\u003c\/p\u003e\u003ch4\u003eWhen can I apply another coat?\u003c\/h4\u003e\u003cp\u003eThe listed manufacturer recoat guidance is 4 hours. Follow the application conditions and instructions for this product.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.rustoleum.com\/product-catalog\/consumer-brands\/zinsser\/waterproofing\/watertite-mold-and-mildew-proof-waterproofing-paint\/sku\/05003\" target=\"_blank\" rel=\"noopener\"\u003eManufacturer directions and product information\u003c\/a\u003e\u003c\/p\u003e","brand":"Zinsser","offers":[{"title":"Default Title","offer_id":67673359384886,"sku":"5001","price":74.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/9750\/0726\/files\/047719050018.jpg?v=1791583895"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/9750\/0726\/collections\/047719050018.jpg?v=1792252217","url":"https:\/\/projectweekenddiy.com\/collections\/masonry-block-waterproofers.oembed","provider":"Project Weekend DIY","version":"1.0","type":"link"}