Qinhuangdao Guangyu Fibreglass Co., Ltd
+86-335-6023029
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How high temperature can fiberglass alkali-free cloth withstand?

Feb 28, 2026

Fiberglass alkali-free cloth, also known as E-glass fiber cloth, refers to glass fiber with low alkali metal oxide content. The specific content of alkali metal oxides is currently not greater than 0.8% in China, and is generally about 1% abroad. Do you know how high the temperature of fiberglass alkali-free cloth can withstand?

 

Glass fiber alkali-free cloth is suitable for mechanical and electrical, chemical industry, pipelines, ships, wires and cables, etc. Glass fiber alkali-free cloth has high strength, good insulation, good heat insulation effect, and can withstand high temperatures of 550℃-1000℃.

 

Fiberglass alkali-free cloth is a very good substitute for metal materials. It is mainly used as an electrical insulation material, a fiberglass reinforcement material, and tire cord. For use in composite cable supports.