{"product_id":"csm-600g-1-4-roll-13-75-metres","title":"Chopped Strand Mat 600g 1\/4 Roll (13.75 metres)","description":"\u003cp data-start=\"1076\" data-end=\"1443\"\u003e\u003cstrong data-start=\"1076\" data-end=\"1109\"\u003e600g Chopped Strand Mat (CSM)\u003c\/strong\u003e is a heavy-duty reinforcement used within GRP fibreglass roofing systems where additional laminate strength and durability are required. Manufactured from \u003cstrong data-start=\"1265\" data-end=\"1348\"\u003eE-glass fibres randomly distributed and bonded together with an emulsion binder\u003c\/strong\u003e, the mat forms the structural reinforcement layer when laminated with polyester roofing resin.\u003c\/p\u003e\n\u003cp data-start=\"1445\" data-end=\"1743\"\u003eThe \u003cstrong data-start=\"1449\" data-end=\"1531\"\u003e600g grammage refers to the weight of glass fibres per square metre of matting\u003c\/strong\u003e. In GRP roofing systems, the structural strength of the finished laminate comes from the \u003cstrong data-start=\"1621\" data-end=\"1694\"\u003ecombination of chopped strand glass reinforcement and polyester resin\u003c\/strong\u003e, as resin on its own becomes brittle once cured.\u003c\/p\u003e\n\u003cp data-start=\"1745\" data-end=\"1933\"\u003eCompared with \u003cstrong data-start=\"1759\" data-end=\"1786\"\u003e450g chopped strand mat\u003c\/strong\u003e, the 600g version produces a \u003cstrong data-start=\"1816\" data-end=\"1837\"\u003estronger laminate\u003c\/strong\u003e, making it suitable for installations where additional reinforcement or durability is required.\u003c\/p\u003e\n\u003cp data-start=\"1935\" data-end=\"2117\"\u003eThe consistent fibre distribution allows for \u003cstrong data-start=\"1980\" data-end=\"2028\"\u003eefficient wet-out and good resin penetration\u003c\/strong\u003e, helping installers consolidate the laminate and reduce trapped air during installation.\u003c\/p\u003e\n\u003cp data-start=\"2119\" data-end=\"2325\"\u003eAs a general guide for roofing laminates, installers typically use \u003cstrong data-start=\"2186\" data-end=\"2268\"\u003eapproximately 2kg of resin per m² when laminating with 600g chopped strand mat\u003c\/strong\u003e, including an allowance for normal installation wastage.\u003c\/p\u003e\n\u003cp data-start=\"2327\" data-end=\"2576\"\u003eThis \u003cstrong data-start=\"2332\" data-end=\"2375\"\u003e600g Quarter Roll of chopped strand mat\u003c\/strong\u003e is supplied in a convenient \u003cstrong data-start=\"2404\" data-end=\"2426\"\u003e13.75 metre length\u003c\/strong\u003e, making it ideal for \u003cstrong data-start=\"2448\" data-end=\"2533\"\u003esmaller roofing projects, repair work or areas requiring additional reinforcement\u003c\/strong\u003e without needing to purchase a larger roll.\u003c\/p\u003e\n\u003chr data-start=\"2578\" data-end=\"2581\"\u003e\n\u003ch2 data-section-id=\"1ihnine\" data-start=\"2583\" data-end=\"2601\"\u003eSizes Available\u003c\/h2\u003e\n\u003cp data-start=\"2603\" data-end=\"2697\"\u003e600g chopped strand mat is available in multiple sizes to suit different project requirements:\u003c\/p\u003e\n\u003cul data-start=\"2699\" data-end=\"2826\"\u003e\n\u003cli data-section-id=\"1vx0xpp\" data-start=\"2699\" data-end=\"2728\"\u003e\n\u003cp data-start=\"2701\" data-end=\"2728\"\u003e\u003cstrong data-start=\"2701\" data-end=\"2726\"\u003eFull Roll – 55 metres\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"103x7lv\" data-start=\"2729\" data-end=\"2760\"\u003e\n\u003cp data-start=\"2731\" data-end=\"2760\"\u003e\u003cstrong data-start=\"2731\" data-end=\"2758\"\u003eHalf Roll – 27.5 metres\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"m47ko4\" data-start=\"2761\" data-end=\"2796\"\u003e\n\u003cp data-start=\"2763\" data-end=\"2796\"\u003e\u003cstrong data-start=\"2763\" data-end=\"2794\"\u003eQuarter Roll – 13.75 metres\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18w8avz\" data-start=\"2797\" data-end=\"2826\"\u003e\n\u003cp data-start=\"2799\" data-end=\"2826\"\u003e\u003cstrong data-start=\"2799\" data-end=\"2826\"\u003eCut per metre available\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALL","offers":[{"title":"Default Title","offer_id":37519418097827,"sku":"Q600","price":28.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0525\/6160\/8867\/products\/IMGL0469-F450_20a66e34-7e9f-4f35-83f2-c80cdc0dcae7.jpg?v=1669119332","url":"https:\/\/fibreglassroofkits.com\/products\/csm-600g-1-4-roll-13-75-metres","provider":"Fibreglass Roof Kits","version":"1.0","type":"link"}