{"product_id":"newton-cdm-508-8mm-cavity-drain-membrane","title":"Newton CDM 508 8mm 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 508 is the cornerstone of the Newton CDM System, a versatile 8mm-stud cavity drain membrane designed for internal waterproofing of below-ground structures. It works by creating an air gap between the structure and the internal wall or floor, allowing water to depressurize and safely drain away to a sump and pump system. Available in both 500g\/m² and 700g\/m² variants, it provides a flexible solution for walls, floors, and vaulted soffits. BBA-certified and guaranteed for 30 years, it is rot-proof, chemically inert, and capable of creating a dry Grade 3 internal environment even in the most challenging basement conditions.\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\"\u003eRapid installation with minimal surface preparation compared to traditional tanking methods\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eBBA certified (22\/6357) with a life expectancy equal to the design life of the structure\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eHighly resistant to aggressive groundwater, alkalines, saline solutions, and organic acids\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eCreates a maintainable \"Type C\" waterproofing system in compliance with BS 8102:2022\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eNon-polluting and safe for use in various residential and commercial environments\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\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003eAvailable in two weights: 500g\/m² (Standard) and 700g\/m² (Heavy Duty)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003eMultiple roll sizes available: 2.0m x 20m (40m²) and 2.4m x 20m (48m²)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003eThe 700g\/m² variant is specifically recommended for floor applications due to its higher compressive strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003eProduct Codes: M1-7-48 \/ M1-7-40 (700g) and M1-5-48 \/ M1-5-40 (500g)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,4,0\"\u003eShould be installed using Newton CDM fixing plugs, tapes, and drainage channels for a complete system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"500g\/m² | 2m x 20m","offer_id":57219257925964,"sku":"BM06086","price":101.2,"currency_code":"GBP","in_stock":true},{"title":"500g\/m² | 2.4m x 20m","offer_id":57219257958732,"sku":"BM06087","price":115.1,"currency_code":"GBP","in_stock":true},{"title":"700g\/m² | 2m x 20m","offer_id":57219018424652,"sku":"BM06088","price":115.0,"currency_code":"GBP","in_stock":true},{"title":"700g\/m² | 2.4m x 20m","offer_id":57219018457420,"sku":"BM06089","price":129.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-cdm-508-8mm-cavity-drain-membrane-1232467327.jpg?v=1776255451","url":"https:\/\/www.constructionsuppliesuk.co.uk\/products\/newton-cdm-508-8mm-cavity-drain-membrane","provider":"Construction Supplies UK","version":"1.0","type":"link"}