High-Temperature Thermal Insulation Materials
Silicone-coated fiberglass, PTFE, vermiculite, and acrylic-coated fabrics plus the hardware to build insulation pads, lagging, turbine covers, and welding protection. Stocked in Conroe, Texas.
Operating temperature range
Welding protection
Fabrication ready
Conroe, Texas
Materials Built for Heat, Sparks, and Molten Slag
Fabritex supplies high-temperature insulation materials in woven glass, PTFE, silicone, vermiculite, and acrylic coatings. They’re flexible, conformable, and wear resistant, so they fabricate cleanly into insulation pads, lagging, and turbine insulation.
Our coated products protect against sparks, welding, and molten slag, and we stock the thread, hook & loop, and D-rings to finish the job.
Product Features
Everything you need to fabricate durable, high-temperature insulation.
Wide Temperature Range
Rated from -73°C to 260°C (-100°F to 500°F), from cold environments to high-heat production lines.
Spark & Slag Protection
Coated fabrics guard against sparks, welding spatter, and molten slag.
Flexible & Conformable
Wraps tightly around valves, flanges, and irregular shapes.
Wear Resistant
Durable coatings hold up to handling, abrasion, and repeated removal.
Fabrication Ready
Ideal for removable insulation pads, lagging, jacketing, and turbine covers.
Easy to Clean
Residue, food, and adhesives wipe away, keeping maintenance simple and downtime low.
Stocked Thermal Materials & Hardware
Silicone-Coated Fiberglass
15 oz, 17 oz, and 32 oz silicone-coated fabric, plus 20 mil and 23 mil silicone fabric.
2025 Series
2025 / 9383 with 2% acrylic and 2025 / 9480 with aluminum foil backing.
Acrylic & PTFE
14.5 oz black acrylic and FabGuard 1650 one-sided PTFE-coated fiberglass.
Vermiculite
Vermiculite for high-heat insulation and welding protection.
Hook & Loop and D-Rings
Gray FR hook & loop in 1″, 1.5″, and 2″ (black on request) and stainless steel D-rings in 1″, 1.5″, and 2″.
Kevlar & Pure PTFE Thread
Kevlar thread with stainless steel and lubed pure PTFE-coated thread for high-temperature sewing.
Thermal Insulation Product Specifications
Compare weight, thickness, strength, and temperature ratings across our insulation jacketing fabrics, welding curtain materials, thread, rope, and fasteners. Download the full data sheet (PDF) for any product below.
Insulation Jacketing & Welding Fabrics
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FABGUARD 1650600°F
FabGuard 1650 PTFE Fiberglass Jacketing Fabric
PTFE-impregnated woven E-glass fiberglass for high-temperature insulation jacketing.
- Coated weight
- 16.5 oz/yd² (559.4 g/m²)
- Thickness
- 0.016 in (0.406 mm)
- Tensile strength (W/F)
- 420 / 360 lb/in
- Operating temp
- -150°F to +600°F
-
FABSIL 1700500°F
FabSil 1700 Silicone Coated Fiberglass Jacketing
Satin weave fiberglass with silicone coating for removable insulation jackets and welding curtains.
- Weight
- 17.0 oz/yd²
- Thickness
- 0.016 in
- Tensile strength (W/F)
- 355 / 275 psi
- Operating temp
- -67°F to +500°F
-
FABSIL 1500500°F
FabSil 1500 Silicone Coated Fiberglass for Welding
Gray silicone-coated satin weave fiberglass built for high-temperature welding curtains.
- Weight
- 15 oz/yd²
- Thickness
- 0.015 in
- Tensile strength (W/F)
- 500 / 285 psi
- Operating temp
- -67°F to +500°F
-
GLASS 2025-9480 AL1000°F
Glass 2025-9480 AL Aluminized Fiberglass
Treated fiberglass laminated to aluminum foil, designed as flange shield material for use by the US Navy.
- Weight
- 19 oz/yd²
- Thickness
- 0.026 in
- Burst strength
- 550 psi
- Operating temp
- Up to +1000°F
-
GLASS 2025-9383 A1000°F
Glass 2025-9383 A Treated Fiberglass
Asbestos-free plain weave fiberglass with a light 2% acrylic coating for stabilization and reduced raveling.
- Weight
- 18 oz/yd²
- Thickness
- 0.03 in
- Tensile strength (W/F)
- 250 / 200 psi
- Max temp
- Up to +1000°F
-
FAB-432-BA1000°F
FAB-432-BA Black Acrylic Welding Fabric
Crowfoot satin weave fiberglass coated with black pigmented acrylic for welding curtains.
- Weight
- 14.0 oz/yd²
- Thickness
- 0.015 in
- Tensile strength (W/F)
- 350 / 300 psi
- Temp resistance
- 1000°F cont. / 1100°F int.
-
VERMICULITE1500°F
Vermiculite Coated Fiberglass Fabric
Asbestos-free 18 oz fiberglass coated with vermiculite for higher temperature resistance, ideal for welding curtains.
- Weight
- 18.0 oz/yd²
- Thickness
- 0.030 in
- Continuous temp
- 1100°F
- Max temp
- 1500°F
Thread, Rope & Fasteners
-
TT-BC 8750°F
TT-BC 8 PTFE Fiberglass Sewing Thread
Continuous filament E-glass thread with PTFE coating for sewing high-temperature insulation.
- Diameter
- 0.016 in
- Breaking strength
- 26.3 lb
- Yield
- 1,700 yd/lb
- Max temp
- 750°F dry / 600°F moist
-
KEVLAR THREAD1832°F
Kevlar Sewing Thread with Stainless Wire
PTFE-coated Kevlar thread with 3 plies of 316L stainless steel wire for high-heat sewing.
- Diameter
- 0.3 mm (0.012 in)
- Tensile strength
- > 61.5 N
- Length
- 2,661 yd/lb
- Max temp
- 662°F; 316L wire to 1832°F
-
PTFE ROPE .14500°F
PTFE Coated Fiberglass Knitted Rope
PTFE-coated knitted fiberglass rope for high-temperature sealing and gasketing.
- Diameter
- 0.14 in (3.6 mm)
- Length
- 1,000 ft/roll
- Breaking strength
- > 600 N
- PTFE operating temp
- -148°F to +500°F
-
HOOK/LOOP FRT248°F
Fire Retardant Hook & Loop Tape
Woven nylon fire-retardant hook and loop fastening tape for removable insulation covers.
- Material
- 100% polyamide (nylon)
- Thickness
- > 0.075 in
- Back coating
- Polyurethane resin
- Temp range
- -4°F to +248°F
-
TT-3SS1832°F
TT-3SS Aramid Sewing Thread with Stainless Wire
PTFE-coated aramid thread reinforced with 3 plies of 316L stainless wire. Won't catch fire, melt, or drip, making it ideal for insulation covers.
- Diameter
- 0.3 mm (0.012 in)
- Tensile strength
- > 61.5 N
- Fiber count
- 1000D
- Working temp
- -58°F to 662°F; wire to 1832°F
-
S/S D-RING10 & 11 GA
Stainless Steel D-Rings for Insulation Blankets
Welded stainless steel D-rings used with webbing straps to cinch down and secure removable insulation blankets and jackets.
- Sizes
- 1", 1-3/16", 1-1/2", 2"
- Wire
- 3 mm, 3.4 mm, 4 mm
- Finish
- Polished, bright
- Custom
- D or rectangular rings to size
Building insulation pads, jackets, or welding curtains? We stock the fabric, thread, hook & loop, and D-rings to finish the job. Ask us for a data sheet or a sample.
Request a QuoteValues are typical properties as listed on each data sheet. Final determination of suitability for a given application is the responsibility of the user.