hot coat

Second coat of resin applied to a surfboard, brushed on following the laminating coat (which saturates the board-covering layer of fiberglass) but before the finishing coat (or gloss coat). Hot coat resin, also known as sanding resin, contains styrene monomer, a wax-based sanding agent, which floats to the surface as the resin dries, resulting in an easy-to-sand surface. The hot coat puts a smooth...

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