What kind of fiberglass fabric and asphalt paint do you use for 5mm thick fiberglass?
Resin and glass cloth composite called resin glass fiber reinforced plastics, commonly known as glass fiber reinforced plastic
Glass cloth and asphalt paint are not called GRP
5mm's best use of thick asphalt paint (crown card) with 0.4 mm glass fiber cloth, at least five cloth six oil, the cost is more expensive,
