{"product_id":"watch-dog-porous-surface-graffiti-remover","title":"Watch Dog® Porous Surface Graffiti Remover","description":"\u003ch2\u003eDumond Watch Dog Porous Surface Graffiti Remover\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWatch Dog Porous\u003c\/strong\u003e is a \u003cstrong\u003enon-drip, deep-penetrating gel\u003c\/strong\u003e that removes graffiti from \u003cstrong\u003eunpainted porous masonry\u003c\/strong\u003e. Dumond says it dissolves graffiti in \u003cstrong\u003e15 to 30 minutes\u003c\/strong\u003e, often with no scrubbing. You apply it, let it sit and rinse it off. It is used on aerosol paint, crayon, markers and unwanted coatings. It is also used on historic stone.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-drip gel\u003c\/strong\u003e that stays put on vertical surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 to 30 minutes\u003c\/strong\u003e of dwell time in Dumond's data sheet. Test results may call for longer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush or roller\u003c\/strong\u003e application, then a pressure-washer rinse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOften needs no scrubbing,\u003c\/strong\u003e says Dumond: apply, let it set and rinse.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere to Use It\u003c\/h3\u003e\n\u003cp\u003eUnpainted concrete, cement, stucco, brick, bare wood, asphalt, pavers, cinderblock, granite, mortar and marble. \u003cem\u003eNot for aluminum, plexiglass, fibreglass, most plastics, brownstone, limestone, plywood, drywall, or painted or stained surfaces. Always test a small area first. Best used at 4.4–32.2 °C.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eSize\u003c\/h3\u003e\n\u003cp\u003e1.9 L (1\/2 gallon). Do not let it dry on the surface.\u003c\/p\u003e\n\u003ch3\u003eSafety First\u003c\/h3\u003e\n\u003cp\u003eDumond's data sheet says this product \u003cstrong\u003ecauses severe skin burns and eye damage\u003c\/strong\u003e. Wear protective gloves, clothing and eye and face protection, and read the product label and Safety Data Sheet before use.\u003c\/p\u003e\n\u003ch3\u003ePorous or All Purpose?\u003c\/h3\u003e\n\u003cp\u003eChoose Watch Dog Porous for unpainted brick, concrete and stone. For sealed, non-porous surfaces such as lockers and cabinets, use \u003ca href=\"\/products\/dumond-all-purpose-graffiti-remover\"\u003eWatch Dog All Purpose\u003c\/a\u003e. Use Porous on masonry.\u003c\/p\u003e\n\n\u003ch5\u003eSpecs \u0026amp; Coverage\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoverage:\u003c\/strong\u003e 100–150 sq ft (9.3–13.9 m²) per gallon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.9 L (1\/2 gallon):\u003c\/strong\u003e about 50–75 sq ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGel graffiti remover for unpainted porous surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8402C (store SKU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDwell time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15–30 minutes, up to 30+ based on test results\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.4–32.2 °C (40–90 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrush or roller. Nylon brush to agitate if needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRinse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWater, with a pressure washer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbove 93.3 °C (200 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbout 3 years, sealed, at room temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch5\u003eApplication Guide\u003c\/h5\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead the label and SDS.\u003c\/strong\u003e Put on gloves, clothing and eye and face protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e a small hidden area to check the result and the dwell time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the weather.\u003c\/strong\u003e Work between 4.4 and 32.2 °C. It is less effective below 4.4 °C, so wait for a milder day in spring or fall.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApply liberally\u003c\/strong\u003e with a brush or roller to a clean, dry, unpainted surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLet it dwell\u003c\/strong\u003e 15 to 30 minutes, or longer if your test shows it is needed. Do not let it dry. Agitate with a nylon brush if needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinse\u003c\/strong\u003e with water and a pressure washer until all product and residue are gone.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch5\u003eFAQ\u003c\/h5\u003e\n\u003cdiv class=\"tpp-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cspan class=\"tpp-num\"\u003e1\u003c\/span\u003e\u003cspan class=\"tpp-q\"\u003eHow much Watch Dog Porous do I need?\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"tpp-a\"\u003e\u003cp\u003eCoverage is 100–150 sq ft per gallon, so the 1.9 L size covers about 50–75 sq ft. A 5 ft x 10 ft tag is 50 sq ft, which is about one container.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cspan class=\"tpp-num\"\u003e2\u003c\/span\u003e\u003cspan class=\"tpp-q\"\u003eHow long does it take to work?\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"tpp-a\"\u003e\u003cp\u003eDumond says graffiti dissolves in 15 to 30 minutes. The data sheet says to allow up to 30 minutes or more, based on test results.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cspan class=\"tpp-num\"\u003e3\u003c\/span\u003e\u003cspan class=\"tpp-q\"\u003eWill it work on painted brick or walls?\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"tpp-a\"\u003e\u003cp\u003eNo. It is for unpainted porous masonry. It is not for painted or stained surfaces, plywood or drywall. Always test first.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cspan class=\"tpp-num\"\u003e4\u003c\/span\u003e\u003cspan class=\"tpp-q\"\u003eCan I use it on limestone or brownstone?\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"tpp-a\"\u003e\u003cp\u003eNo. Dumond lists brownstone and limestone as not recommended. It does list marble, granite and mortar.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cspan class=\"tpp-num\"\u003e5\u003c\/span\u003e\u003cspan class=\"tpp-q\"\u003eIs it safe to handle?\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"tpp-a\"\u003e\u003cp\u003eIt is a corrosive product. Dumond says it causes severe skin burns and eye damage and is harmful if inhaled or swallowed. Use protective gear and follow the label and Safety Data Sheet.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cspan class=\"tpp-num\"\u003e6\u003c\/span\u003e\u003cspan class=\"tpp-q\"\u003eCan I use it in cold weather?\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"tpp-a\"\u003e\u003cp\u003eIt works best between 4.4 and 32.2 °C (40–90 °F) and is less effective below 4.4 °C. Wait for a milder day in a Canadian fall or spring.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cspan class=\"tpp-num\"\u003e7\u003c\/span\u003e\u003cspan class=\"tpp-q\"\u003eHow do I rinse it off?\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"tpp-a\"\u003e\u003cp\u003eRinse with water using a pressure washer so no product or residue stays on the masonry. Don't let it dry before rinsing.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cspan class=\"tpp-num\"\u003e8\u003c\/span\u003e\u003cspan class=\"tpp-q\"\u003eWatch Dog Porous or All Purpose?\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"tpp-a\"\u003e\u003cp\u003ePorous is for unpainted brick, concrete and stone. \u003ca href=\"\/products\/dumond-all-purpose-graffiti-remover\"\u003eAll Purpose\u003c\/a\u003e is a 650 mL spray for sealed surfaces such as lockers and cabinets. \u003ca href=\"\/pages\/contact-page\"\u003eContact us\u003c\/a\u003e if you're not sure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n","brand":"Dumond Chemicals","offers":[{"title":"1.9L (1\/2 Gallon)","offer_id":41220852940855,"sku":"8402C","price":63.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0062\/5400\/2231\/products\/Dumond8402CPorousSurfaceFraffitiRemover1.9L.jpg?v=1674240641","url":"https:\/\/thepaintpeople.com\/products\/watch-dog-porous-surface-graffiti-remover","provider":"The Paint People","version":"1.0","type":"link"}