{"product_id":"watco-new-concrete-primer","title":"Watco New Concrete Primer","description":"\u003cp\u003eWatco New Concrete Primer is a two part epoxy primer that allows suitable newly laid concrete floors to be coated while they still contain construction moisture. It forms a barrier against moisture vapour at up to 98% relative humidity, helping reduce the waiting time normally needed before painting new industrial floors.\u003c\/p\u003e\n\u003cp\u003eThe virtually solvent free, high solids formulation penetrates prepared concrete and provides a base for compatible Watco floor coatings. It is designed for interior concrete and sand and cement surfaces where residual moisture would otherwise restrict the choice of floor paint. Its dark grey finish also makes it easier to inspect coverage and identify missed areas before applying the topcoat.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMoisture-tolerant primer for new concrete, up to 98% RH.\u003c\/li\u003e\n\u003cli\u003eTwo component, 100% solids epoxy formulation.\u003c\/li\u003e\n\u003cli\u003eUsually one full coat on sound, reasonably good quality concrete.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\n\u003cp\u003eThe floor must be sound and free of dust, contamination and weak material. Mechanical preparation, such as shot blasting or scarifying, is preferred; vacuum thoroughly afterwards. Smooth power floated concrete needs suitable mechanical preparation. Switch off underfloor heating at least two days before application and leave it off for at least two days afterwards, then raise the temperature gradually.\u003c\/p\u003e\n\u003ch3\u003eTechnical Data\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size \/ colour\u003c\/th\u003e\n\u003ctd\u003e8kg \/ Dark Grey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eInterior concrete and sand and cement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMoisture tolerance\u003c\/th\u003e\n\u003ctd\u003eUp to 98% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum conditions\u003c\/th\u003e\n\u003ctd\u003eAir 15°C; floor 10°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePot life\u003c\/th\u003e\n\u003ctd\u003e1 hour at 15°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShelf life\u003c\/th\u003e\n\u003ctd\u003e6 months unopened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCoverage\u003c\/h3\u003e\n\u003cp\u003eAllow approximately 20–25m² per 8kg at a wet film thickness of 250 microns. The calculator uses the conservative 20m² rate (2.5m²\/kg). Porous or open-textured concrete may need more material or a second coat.\u003c\/p\u003e\n\u003ch3\u003eDirections for Use\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eCombine the complete resin and curing agent pack and mix thoroughly, scraping the sides and base. Do not leave mixed material standing in the container: decant immediately into a roller tray.\u003c\/li\u003e\n\u003cli\u003eWork into the prepared surface with a medium pile roller, using a brush at edges. Aim for a continuous coat without pinholes or missed patches.\u003c\/li\u003e\n\u003cli\u003eInspect after drying and apply another coat where needed to achieve a complete moisture barrier.\u003c\/li\u003e\n\u003cli\u003eAt 15°C, allow 16 hours before a compatible 100% solids Watco topcoat; water based coatings require 24–48 hours. Lightly abrade if more than 4–5 days elapse before overcoating.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\n\u003cp\u003eThis primer needs a suitable finish and correct preparation. A single coat may not seal highly porous concrete completely. Screed or repair overlays can require two coats with a sand-blinded second coat: follow the technical sheet for the full system. Store at 15–25°C for at least eight hours before use and protect from frost. Mixed epoxy generates heat, so transfer it promptly to a tray.\u003c\/p\u003e\n\u003ch3\u003eProduct FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used on new concrete?\u003c\/strong\u003e\u003cbr\u003eYes. It is designed to suppress construction moisture in suitable new concrete at up to 98% RH before a compatible floor coating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much does a pack cover?\u003c\/strong\u003e\u003cbr\u003eApproximately 20–25m² per 8kg at 250 microns. More material may be required on porous or open-textured surfaces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen can I apply the topcoat?\u003c\/strong\u003e\u003cbr\u003eAt 15°C allow 16 hours for compatible 100% solids Watco coatings, or 24–48 hours for water based coatings. Check the complete coating specification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs one coat enough?\u003c\/strong\u003e\u003cbr\u003eUsually on sound, good quality concrete. Inspect for pinholes and missed patches; additional coats may be needed to form a continuous barrier.\u003c\/p\u003e\n\u003ch3\u003eData Sheets\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-new_concrete_primer_tds.pdf?v=1794397455\" rel=\"noopener\" target=\"_blank\"\u003eTechnical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-new_concrete_primer_curing_agent_gb.pdf?v=1794397455\" rel=\"noopener\" target=\"_blank\"\u003eSafety Data Sheet – Curing Agent (GB)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-new_concrete_primer_resin_gb.pdf?v=1794397455\" rel=\"noopener\" target=\"_blank\"\u003eSafety Data Sheet – Resin (GB)\u003c\/a\u003e\u003c\/p\u003e","brand":"Watco","offers":[{"title":"8kg","offer_id":58279527940436,"sku":"NCPDGY8","price":185.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-new-new_concrete_primer_bucket.png?v=1794397445","url":"https:\/\/andrewscoatings.co.uk\/products\/watco-new-concrete-primer","provider":"Andrews Coatings Ltd","version":"1.0","type":"link"}