Use Polyester Gel Coat as first coat on moulds (and repair work if a melamine sheet can be screwed to top surface). 600g covers approximately 1 sq. metre.
2 sizes are available: 1 kg (this one) and 2.5 kg.
Please use the following protective equipments when working: Overall, preferably taped at the wrist, gloves, goggles and a facemask.
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