A high quality isophthalic, Lloyds Approved gelcoat. This gelcoat has excellent physical properties, water resistance and UV light stability. It can be used for a wide variety of parts, making it very popular. Gelcoat forms the smooth outer surface of the finished laminate and therefore is applied to the prepared mould first. Pigments can be added at a rate of approx 10% by weight (depending on colour). Supplied with free catalyst.