{"product_id":"watco-tack-coat","title":"Watco Tack Coat","description":"\u003cp\u003e\u003cstrong\u003eWatco Tack Coat\u003c\/strong\u003e is a \u003cstrong\u003etwo-part epoxy adhesive primer\u003c\/strong\u003e for use with the Watco Concrex concrete repair range. Its 100% solids epoxy formulation creates a bonding layer between the prepared substrate and repair mortar, helping achieve adhesion on shallow repairs, intricate edges and surfaces where additional bonding is needed.\u003c\/p\u003e\n\u003cp\u003eUse this \u003cstrong\u003econcrete repair primer\u003c\/strong\u003e before screeding with Concrex or applying Concrex Vertical. It is suitable for work on floors, steps, ramps and walls, with internal and external applications on concrete, metal and masonry. For repairs using \u003ca href=\"\/products\/watco-concrex-deep-fill\"\u003eWatco Concrex Deep Fill\u003c\/a\u003e, Tack Coat is recommended on smooth or damp substrates where the mortar needs an adhesive bonding coat.\u003c\/p\u003e\n\u003cp\u003eTack Coat is applied sparingly with a brush or roller, making it straightforward to work into edges and smaller repair areas. The important step is to place the repair mortar \u003cstrong\u003ewhile the primer is still tacky\u003c\/strong\u003e: allow it to develop its tack, then overlay before it sets to a hard film. This is a bonding primer for the repair system, rather than a finished floor coating.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEpoxy bonding primer:\u003c\/strong\u003e supports adhesion for Concrex mortar and screeding work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShallow and detailed repairs:\u003c\/strong\u003e useful around edges and intricate areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo coverage options:\u003c\/strong\u003e choose the pack for approximately 1m² or 6m² of prepared surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush or roller application:\u003c\/strong\u003e apply one thin coat and overlay at the tacky stage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\u003cp\u003eGood surface preparation is essential for an effective bond between the substrate, primer and repair mortar. Remove dust, loose material and poorly bonded paint; roughen sound coatings to provide a key. Wire-brush or grind rust from metal, degrease and allow it to dry. Prime prepared metal promptly. Remove ice from the substrate.\u003c\/p\u003e\n\u003ch3\u003eTechnical Data\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFormulation\u003c\/th\u003e\n\u003ctd\u003e100% solids epoxy; resin and curing agent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack coverage\u003c\/th\u003e\n\u003ctd\u003e0.34L: approximately 1m²; 2L: approximately 6m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitable surfaces\u003c\/th\u003e\n\u003ctd\u003eConcrete, metal and masonry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoats \/ Tools\u003c\/th\u003e\n\u003ctd\u003eOne thin coat \/ brush or roller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePot life\u003c\/th\u003e\n\u003ctd\u003eMaximum 20 minutes at 20°C in a shallow tray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReady to overlay\u003c\/th\u003e\n\u003ctd\u003eApproximately 60 minutes at 15–20°C; three hours at 5°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShelf life\u003c\/th\u003e\n\u003ctd\u003e24 months, unopened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eDirections for Use\u003c\/h3\u003e\u003cp\u003eEmpty the smaller tin into the larger and mix thoroughly with a wide blade. Decant the larger pack into a shallow tray and use immediately. Mixed material left in the tin can heat rapidly. Apply sparingly, then place Concrex mortar while the primer remains tacky.\u003c\/p\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\u003cp\u003eDo not allow the bonding coat to harden before overlaying. Protect stored packs from frost and condition at 15–20°C for eight hours before use. Read both safety sheets.\u003c\/p\u003e\n\u003ch3\u003eProduct FAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhich pack should I choose?\u003c\/strong\u003e\u003cbr\u003eThe 0.34L pack treats approximately 1m²; the 2L pack treats approximately 6m². Coverage varies with the surface.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I apply the repair mortar?\u003c\/strong\u003e\u003cbr\u003eApply while Tack Coat is tacky, before it hardens: typically after about 60 minutes at 15–20°C, or three hours at 5°C.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it go over paint?\u003c\/strong\u003e\u003cbr\u003eYes, provided the paint is sound. Remove loose paint and roughen firmly bonded coatings first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat if the primer has hardened?\u003c\/strong\u003e\u003cbr\u003eBrush on a fresh coat, preferably within 24 hours, then apply the mortar while tacky. Follow the technical sheet.\u003c\/p\u003e\n\u003ch3\u003eData Sheets\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-tack-coat-tds.pdf?v=1793717073\" target=\"_blank\" rel=\"noopener\"\u003eTechnical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-tack-coat-sds-curing-agent-gb.pdf?v=1793717073\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet – Curing Agent (GB)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-tack-coat-sds-resin-gb.pdf?v=1793717073\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet – Resin (GB)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-tack-coat-sds-curing-agent-gbni.pdf?v=1793717074\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet – Curing Agent (GBNI)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-tack-coat-sds-resin-gbni.pdf?v=1793717073\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet – Resin (GBNI)\u003c\/a\u003e\u003c\/p\u003e","brand":"Watco","offers":[{"title":"0.34L (1m²)","offer_id":58108202844500,"sku":"TACKCDC1","price":31.0,"currency_code":"GBP","in_stock":true},{"title":"2L (6m²)","offer_id":58108202877268,"sku":"TACKCDC6","price":88.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-tack-coat-1.jpg?v=1793717053","url":"https:\/\/andrewscoatings.co.uk\/products\/watco-tack-coat","provider":"Andrews Coatings Ltd","version":"1.0","type":"link"}