A high quality, isophthalic, Lloyds Approved Topcoat. Unlike standard gelcoat, Topcoat cures tack free, which allows it to be used like a paint and seal fibreglass surfaces. This Topcoat has excellent physical properties, water resistance and UV light stability. This high quality Topcoat is suitable for a wide range of applications and for all GRP surfaces. Pre-pigmented White. Not suitable for spray application. Supplied with free catalyst.