Fibreglass Matting 450g CSM Chopped Strand Matt - 10KG - 22 Sq M Sent rolled This medium weight Chopped Strand Matt (C.S.M.) is for use with resin for fibreglass projects. We sell this CSM rolled so no creases or breaks - The 10 kg roll gives approx 22Sq M. As a guide the Resin to Matt ratio are : 1.2kg resin per m² or2.5kg resin per kg mat.
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