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Fiberglass Properties

Updated: Jan 21, 2021

Since 1930, fiberglass has found to be the material of the future for several industrial applications because it is light weight, durable & has great thermal insulation properties.

Fiberglass Properties

CHEMICAL RESISTANCE- Fiberglass textile fabrics will not rot, mildew or deteriorate. They resist most acids with the exceptions of hydrofluoric acid and phosphoric acid.

DIMENSIONAL STABILITY- Fiberglass fabrics will not stretch or shrink. Nominal elongation break is 3-4 percent. The average linear thermal expansion coefficient of "E" glass is 5.4 by 10.6 cm/cm/°C.

GOOD THERMAL PROPERTIES- Fiberglass fabrics have a low coefficient of thermal expansion and relatively high thermal conductivity. Glass fabrics will dissipate heat more rapidly than asbestos or organic fibers.

HIGH TENSILE STRENGTH- Fiberglass yarn has a high strength-to-weight ratio. Fiberglass yarn is twice as strong as steel wire.

HIGH THERMAL ENDURANCE-Fiberglass cannot burn and is basically unaffected by curing temperatures used industrial processing. Fiberglass will retain approximately 50 percent of its strength at 370°C and as much as 25 percent at 550°C.

LOW MOISTURE ABSORPTION-Fiberglass yarn has extremely low moisture absorption.

ELECTRICAL INSULATION- High dielectrical strength and relatively low dielectrical constants make fiberglass fabrics outstanding for electrical insulation purposes.

PRODUCT VERSATILITY- The wide range of filaments, fiberglass yarns, yarn sizes, weave types and finishes make fiberglass fabrics available for a broad range of industrial end uses

COST-EFFECTIVE-Fiberglass fabrics offer cost advantages compared to other synthetic and natural fiber fabrics.

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