{"product_id":"newton-cdm-503-cavity-drain-membrane","title":"Newton CDM 503 Cavity Drain Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNewton CDM 503 is a slim-profile, 3mm-stud cavity drain membrane designed for internal waterproofing where space is at a premium. Despite its low profile, it functions as a high-performance \"Type C\" waterproofing system, creating an air gap that allows water to depressurize and drain safely to a collection point. It is particularly effective for earth-retained walls, vaulted soffits, and tunnels. Being BBA-certified and guaranteed for 30 years, it provides a reliable, long-term solution for creating dry Grade 3 environments. Its slim design makes it ideal for projects where room dimensions must be maintained as much as possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"3,0,0\"\u003eSpace-saving 3mm profile is ideal for tight applications without sacrificing waterproofing performance\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eRapid installation with minimal preparation to the existing wall surface\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eBBA-certified (22\/6357) with a life expectancy equal to the building's design life\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eChemically inert and resistant to alkalines, saline solutions, and organic acids\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eCreates a maintainable drainage system in full compliance with BS 8102:2022\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003eSupplied in rolls of 2.0m x 20m (40m² coverage)\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,1,0\"\u003eProduct Code: M5\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003eFeatures a white\/translucent finish for a clean substrate\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003eGenerally used for walls and vaulted ceilings rather than heavy-duty floors\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,4,0\"\u003eShould be installed using specialized Newton CDM fixing plugs and sealing tapes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57220666261836,"sku":"BM06091","price":125.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-cdm-503-cavity-drain-membrane-1232467325.jpg?v=1776255469","url":"https:\/\/www.constructionsuppliesuk.co.uk\/products\/newton-cdm-503-cavity-drain-membrane","provider":"Construction Supplies UK","version":"1.0","type":"link"}