4oz e-glass surfboard fiberglass cloth is 6522 plain weave fiber glass cloth. It is woven in plain weave and its yarn count is 9.6 / 8.7 per cm. E-glass fiberglass fabric is a high tensile strength, tear resistant, electrical insulation, chemical resistant and fire resistant material. 4oz fabric is light weight, can be combined with many resins. Similar to 6oz and 8oz fabric, this 4oz e-glass fiberglass cloht is especially used for surfboard, boat, yacht building.
Fiberglass cloth is able to withstand heat below 550℃ continuously. Except for surfboard, this cloth is able to be used for boat/yacht, tank, swimming pool, refurbish pools production, coated fiberglass fabric, wire electrical insulation and printed circuit board.