{"product_id":"mapei-topcem-cement-replacement-20kg","title":"Mapei Topcem Cement Replacement 20kg","description":"\u003cp\u003eMapei Topcem is a special hydraulic binder used as a direct replacement for Portland cement in traditional sand–cement screed mixes. It dramatically accelerates drying time, allowing floor coverings to be installed in as little as 24 hours instead of the standard 1 mm per day. It also provides controlled shrinkage and high mechanical strength.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cdiv class=\"sw-benefits-grid\"\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eRapid drying — floor coverings from approximately 24 hours\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eDrop-in replacement for Portland cement in screed mixes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eControlled shrinkage — reduces cracking risk\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eHigh compressive and flexural strength\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eCompatible with underfloor heating systems\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eSuitable for bonded, unbonded and floating screeds\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eNo need for forced drying or dehumidification\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eReplace the Portland cement component of the screed mix with Topcem at the same ratio (typically 1 part Topcem to 3–4 parts sand by weight). Add water sparingly — mix should have a semi-dry, earth-moist consistency. Lay, compact and level as per standard screed practice. The screed is walkable in approximately 12 hours and ready for floor coverings from 24 hours at 20°C. Apply at temperatures between +5°C and +35°C.\u003c\/p\u003e\n\u003ch3\u003eCoverage\u003c\/h3\u003e\n\u003cp\u003eOne 20 kg bag replaces 20 kg of Portland cement. For a typical 4:1 sand–cement screed at 50 mm depth, approximately 20 kg of Topcem covers 4–5 m².\u003c\/p\u003e","brand":"MAPEI","offers":[{"title":"Single Bag (20kg)","offer_id":51305564635475,"sku":"MAPEI-MAPEI-20KG","price":15.86,"currency_code":"GBP","in_stock":true},{"title":"Half Pallet (20 x 20kg)","offer_id":53447354057043,"sku":"MAPEI-MAPEI-20KG-HP","price":304.51,"currency_code":"GBP","in_stock":true},{"title":"Full Pallet (40 x 20kg)","offer_id":53447354122579,"sku":"MAPEI-MAPEI-20KG-FP","price":558.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6720\/9043\/files\/Screenshot2025-12-18at10.13.34.png?v=1766049269","url":"https:\/\/shop.screedworks.co.uk\/products\/mapei-topcem-cement-replacement-20kg","provider":"screedworks","version":"1.0","type":"link"}