Silicone/Fiberglass Cloth – Style 725

Fiberglass base fabric that has been impregnated with our specially formulated silicone rubber compound. This silicone coating adds extended life, while providing greater oil and water resistance than uncoated fabrics as well as low smoke and flame retardation.


Weight:  17.0 oz yd ± 10% 

Base Fabric & Weave:  Fiberglass/Plain Weave 

Thickness:  0.015 ± 10% 

Color & Coating:  Gray Silicone 

Tensile Strength Method:  FTMS 191A/M5102 

Temperature Resistance:  500°F 

Warp:  175 lbs./in. min. avg. 

Fill:  25 lbs. min. 

Tear Strength - 
Method:  FTMS191A/M5136 
Warp:  35 lbs. min. avg. 
Fill:  25 lbs. min. avg. 
Flame Resistance Method:  FTMS 191A/M5903 
Flame Out:   1 second 
Afterglow:   3.0 seconds
Char Length:  0 

Burst Strength Method: FTMS 191A/M5122 (Mullen) 
175 lbs. in. min. avg. 

Hydrostatic Resistance Method: FTMS191A/M5512 (Mullen) 
200 lbs. in. min. avg.

Although base fabric is rated 1 ,000° F continuous operating temperature, silicone coating is rated 500°F on a continuous basis. Style 725 is a fiberglass fabric meeting MIL-I-20079G. It is designed specifically for high temperature (500ºF) removable pads (flange and valve covers). The product meets Military Spec. MIL-I-224244.


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