{"product_id":"csm-600g-per-metre","title":"CSM 600g (per metre)","description":"\u003cp data-start=\"1092\" data-end=\"1459\"\u003e\u003cstrong data-start=\"1092\" data-end=\"1125\"\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=\"1281\" data-end=\"1364\"\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=\"1461\" data-end=\"1759\"\u003eThe \u003cstrong data-start=\"1465\" data-end=\"1547\"\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=\"1637\" data-end=\"1710\"\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=\"1761\" data-end=\"1949\"\u003eCompared with \u003cstrong data-start=\"1775\" data-end=\"1802\"\u003e450g chopped strand mat\u003c\/strong\u003e, the 600g version provides a \u003cstrong data-start=\"1832\" data-end=\"1853\"\u003estronger laminate\u003c\/strong\u003e, making it suitable for installations where additional reinforcement or durability is required.\u003c\/p\u003e\n\u003cp data-start=\"1951\" data-end=\"2133\"\u003eThe consistent fibre distribution allows for \u003cstrong data-start=\"1996\" data-end=\"2044\"\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=\"2135\" data-end=\"2341\"\u003eAs a general guide for roofing laminates, installers typically use \u003cstrong data-start=\"2202\" data-end=\"2284\"\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=\"2343\" data-end=\"2595\"\u003eThis \u003cstrong data-start=\"2348\" data-end=\"2385\"\u003e600g chopped strand mat per metre\u003c\/strong\u003e option allows installers to purchase the exact length required, making it ideal for \u003cstrong data-start=\"2470\" data-end=\"2526\"\u003erepairs, reinforcement work or smaller roofing areas\u003c\/strong\u003e where heavy-duty matting is required without purchasing a full roll.\u003c\/p\u003e\n\u003chr data-start=\"2597\" data-end=\"2600\"\u003e\n\u003ch2 data-section-id=\"1ihnine\" data-start=\"2602\" data-end=\"2620\"\u003eSizes Available\u003c\/h2\u003e\n\u003cp data-start=\"2622\" data-end=\"2716\"\u003e600g chopped strand mat is available in multiple sizes to suit different project requirements:\u003c\/p\u003e\n\u003cul data-start=\"2718\" data-end=\"2845\"\u003e\n\u003cli data-section-id=\"1vx0xpp\" data-start=\"2718\" data-end=\"2747\"\u003e\n\u003cp data-start=\"2720\" data-end=\"2747\"\u003e\u003cstrong data-start=\"2720\" data-end=\"2745\"\u003eFull Roll – 55 metres\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"103x7lv\" data-start=\"2748\" data-end=\"2779\"\u003e\n\u003cp data-start=\"2750\" data-end=\"2779\"\u003e\u003cstrong data-start=\"2750\" data-end=\"2777\"\u003eHalf Roll – 27.5 metres\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"m47ko4\" data-start=\"2780\" data-end=\"2815\"\u003e\n\u003cp data-start=\"2782\" data-end=\"2815\"\u003e\u003cstrong data-start=\"2782\" data-end=\"2813\"\u003eQuarter Roll – 13.75 metres\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18w8avz\" data-start=\"2816\" data-end=\"2845\"\u003e\n\u003cp data-start=\"2818\" data-end=\"2845\"\u003e\u003cstrong data-start=\"2818\" data-end=\"2845\"\u003eCut per metre available\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2847\" data-end=\"2850\"\u003e\n\u003cp data-start=\"2852\" data-end=\"2923\"\u003e\u003cstrong data-start=\"2852\" data-end=\"2869\"\u003eOrdering tip:\u003c\/strong\u003e\u003cbr data-start=\"2869\" data-end=\"2872\"\u003e\u003cstrong data-start=\"2872\" data-end=\"2923\"\u003e1 quantity = 1 metre of matting (1 metre wide).\u003c\/strong\u003e\u003c\/p\u003e","brand":"ALL","offers":[{"title":"Default Title","offer_id":37519416328355,"sku":"CSM600","price":2.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0525\/6160\/8867\/products\/IMGL0471-F450_2d19990a-1e99-4b0b-8b99-1e8f4ed68cc2.jpg?v=1659003074","url":"https:\/\/fibreglassroofkits.com\/products\/csm-600g-per-metre","provider":"Fibreglass Roof Kits","version":"1.0","type":"link"}