{"product_id":"cornerstone-promix-basecoat-render-plaster-25kg","title":"Cornerstone Promix Basecoat Render \u0026 Plaster 25kg","description":"\u003cdiv class=\"gb-grid-column gb-grid-column-688b5d98\"\u003e\n\u003cdiv class=\"gb-container gb-container-688b5d98\"\u003e\n\u003cp\u003eCornerstone Promix Coarse Basecoat is a dry ready mixed render and plaster designed as a coarse basecoat or float coat within an appropriate render system. Available in the colour white.\u003c\/p\u003e\n\u003cp\u003eEngineered with precision, using 100% pure natural hydraulic lime, natural sands, and conservation-appropriate additives to create a high-performance render and plaster. Enhanced plasticity supports a decreased likelihood of slump and improved adhesion. Further, a longer open time makes this render undemanding to apply, level and finish. Available as standard with Saint-Astier® NHL2 or NHL3.5. Other binders and mix ratios are available upon request.\u003c\/p\u003e\n\u003cp\u003eWell-suited for projects looking for a modern feel or a textured topcoat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gb-grid-column gb-grid-column-6b9bea8f\"\u003e\n\u003cdiv class=\"gb-container gb-container-6b9bea8f\"\u003e\n\u003cul class=\"product-features\"\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003eConservation appropriate additives\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003eVapour permeable to support moisture management\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003eFeatures the feel of a modern mortar\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003eNo-fuss levelling and finishing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003eIncreased water retention with decreased slumping\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003eMinimised likelihood of shrinkage cracking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003eEnhanced workability for those behind the trowel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003eExtended working and finishing time\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"gb-headline-text\"\u003ePromotes even curing for an improved bond\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"gb-headline-text\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cstrong\u003eTechnical Information:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eMaterials: Natural Hydraulic Lime, Natural Sands, Additives\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eMix Ratio: 2:5, others available on request\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eBinder: NHL2, NHL3.5, others available on request\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eAggregate: 4mm down washed silica sand\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eWork: Rendering, Plastering\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eCoverage: A 25kg bag covers approx. 1.5m\u003csup\u003e2\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eat 10mm thickness\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eYield: A 25kg bag yields approx. 15 litres\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eColours: Off-white\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eUse: Internal, External\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eCoat: Basecoat\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eStandard: BS EN 998-1: 2016\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eFire Rating: A1\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"name\"\u003eApplication: Manual\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info-row\"\u003e\n\u003cdiv class=\"info\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"info\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cstrong\u003eArea of Use:\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info\"\u003e\n\u003cp\u003eSuitable for internal or external use, where the binder strength is appropriate for the host background or surface.\u003c\/p\u003e\n\u003cp\u003eCornerstone Promix Coarse Basecoat suits various render and plastering applications, including coarse render coats, dubbing out, scat coats, scratch coats and float coats.\u003c\/p\u003e\n\u003cp\u003eFor challenging backgrounds with very high or low suction,\u003ca href=\"https:\/\/cornerstonemortars.co.uk\/products\/promix\/promix-bonding-coat-render\/\"\u003e\u003cspan\u003e \u003c\/span\u003ePromix Bonding Coat can be used as a coarse first coat\u003c\/a\u003e, followed by a coat of Promix Basecoat on top. For a more traditional, slightly coarser and buff coloured finish,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/cornerstonemortars.co.uk\/products\/promix\/promix-traditional-basecoat-render\/\"\u003ewe recommend our Promix Traditional Basecoat\u003c\/a\u003e. Appropriate for various project types, including conservation, renovation, or sustainable construction.\u003c\/p\u003e\n\u003cp\u003eA 25kg bag yields approximately 15 litres of lime render or plaster and covers roughly 1.5m² at a 10mm thickness. Consumption rates will change based on how even the background is and suction. On-site trials are advised for the best yield indication for your specific project.\u003c\/p\u003e\n\u003cp\u003eAs natural products, our kiln-dried sands may exhibit variations in colour, texture, and shape. While these variations are minimal, when colour consistency is crucial, we strongly advise each elevation is completed using material from the same batch.\u003c\/p\u003e\n\u003cp\u003eSupplied in 25kg polythene-lined and colour and batch-code paper bags for easy identification on-site and palletised for ease of transport, storage, and handling. FIBC tonne bags are also available.\u003c\/p\u003e\n\u003cp\u003eDo not use in temperatures below 5°C or above 30°C, or if freezing conditions are predicted within the following few weeks, including wind chill. We always advise following best practices for curing and protecting fresh lime renders and plasters. Protect from adverse environmental conditions, including frost, rain, direct sunlight and drying winds.\u003c\/p\u003e\n\u003cp\u003eStore in covered and dry conditions, protected from environmental conditions, including water, damp or frost and clear from the ground.\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"reseal\"\u003eAlways reseal packaging if product is still present.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"gb-headline gb-headline-4658b468 gb-headline-text\"\u003eAlways read the available documentation before use. See the Download Documentation section below for more detailed product information, application guidance and datasheets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cornerstone","offers":[{"title":"NHL 2","offer_id":52419729555803,"sku":"211043241","price":15.45,"currency_code":"GBP","in_stock":true},{"title":"NHL 3.5","offer_id":52419729588571,"sku":"211043341","price":15.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/7657\/4043\/files\/cornerstone-promix-basecoat-render-plaster.jpg?v=1771522458","url":"https:\/\/buildgreener.co.uk\/products\/cornerstone-promix-basecoat-render-plaster-25kg","provider":"Build Greener","version":"1.0","type":"link"}