Fabric Expansion Joint Materials

Temperature	Materials	Advantages	Pressure	Chemical Resistance	Applications
Low Ambient – 250°F	Butyl Rubber Neoprene Viton	High tensile strength Ozone and weathering resistance	Medium	High	Hot and Cold Water Low-Pressure Steam Neutral Solutions
Medium 250 – 500°F	Fiberglass Reinforced Silicone	Resistant to deterioration by weathering and engine oil remains UV / ozone / fungus resistant	Low	High	Gaskets or Seals Recirculation Air Air Intake
High 500 – 700°F	PTFE Impregnated Fiberglass PTFE Coated Glass Cloth	High tear/crease resistant Smooth, low friction, non-stick surface, high tensile strength	Low	Medium	Exhaust Ventilation Fume Protection Gaskets or Seals
High 700 – 1000°F	Silica Fabric Cloth	High abrasion resistance Won’t rot or mildew	Low	Low	Boiler Exhaust
High 1000 – 1800°F *3-layer	Silica/PTFE Fabric with Kaowool Aluminized Glass Cloth with Kaowool & PTFE	Excellent resistance to chemicals High-temperature stability	Low	Low	Furnaces Kilns

*We use a combination of materials to achieve a higher temperature rating.


Reinforced Silicone Fabric	PTFE Coated Glass Cloth	Aluminized Glass Cloth	Silica Oxide Glass Cloth