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How to Choose the Right Fabric for Your Fabric Expansion Joint

Choosing the Right Fabric Expansion Joint Materials

Selecting the correct material for a fabric expansion joint is important for its performance and life span. The flexible belt is a composite of multiple layers, each serving a specific function, such as a gas seal, thermal barrier, or chemical resistance layer. The choice of materials depends on the application’s operating temperature, chemical compatibility, pressure, and the need for abrasion resistance.  Find the right material for your project and explore the chart below to find the best fabric for your fabric expansion joint that will meet the needs of your specific application:

 

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.

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

 

US Bellows: Engineered Fabric Joints for Optimal Performance

US Bellows provides high-performance fabric expansion joints by offering a wide range of custom-engineered materials designed to meet the temperature, pressure, and chemical resistance needs of diverse industrial applications.

Ready to Request a Quote for your fabric expansion joint?