Patent ID: 8394886

Claim:
A gelcoat comprising: Aliphatic unsatured polyester resin 50-80% Cobolt-octoate accelerator 0-0.5% Amine accelerator 0-0.5% Inhibitor 0-0.5% Air Release Agent 0-0.5% Levelling Agent 0-0.5% Filler 5-15% Silica 1-3% Glycol 0.2-0.5% Pigment 2-15% UV-stabiliser A 0-2% UV-stabiliser B 0-2% Styrene 5-15% wherein the aliphatic unsaturated polyester resin has a viscosity of 500-600 mPa s (25° C.) a styrene monomer content of 40±2% and an acid number of max 15 mg KOH/g.