Two element epoxy that is UL tested According to Typical 746A, formulated to improve arc resistance. Bonds nicely to range of substrates. Ordinary gelcoat formulated to be used with polyester resins and vinylester resins won't adhere to epoxy surfaces, nevertheless epoxy adheres extremely nicely if placed on polyester resin surfaces. https://www.propanraya.com/id/produk/epoxy-fast-dry