1200F / 648C Continuous - Premium Grade

This premium grade high temperature and heat resistant woven fiberglass cloth is heat treated to remove organics, set the weave dimensionally and reduce fray and loose fibers. Meets MIL-C-20079 (type I, Class 9) and US Coast Guard 164.009.

Used as a marine lagging fabric and in nuclear applications as a covering for insulation and board.

Designed for continuous operation at 1200F / 648C

Fabric is available in two weights; 8.5 oz/sq/yd (.018" thick) and 18.0 oz/sq/yd (.032" thick).  Roll width is available as 40 and 60 inches.

This fabric is also available with a self-adhesive backing.  The adhesive is acrylic based, and will burn-off or vaporize at temperatures above 400°F.  If prolonged use of the self-adhesive fabric above 400°F is desired, then alternate securing methods such as fasteners, wire or clamps should be used.  Personnel should avoid inhaling fumes from the PSA.
Heat Cleaned Fiberglass Fabric meeting US Coast Guard 164.009
and MIL-C-20079 (
Type 1, Class 9)
High Temperature, Heat Resistant
Premium Fiberglass Heat Cleaned Fabric
high temperature heat resistant premium fiberglass marine lagging fabric mil-c-20079 type 1 class 9 USCG 164.009
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heat cleaned fiberglass fabric USCG 164.009 MILC20079 catalog page data sheet
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