Strength and Flexibility Temperature and Conductivity Traction Material Don't Care TPU Polyurethane Hamid Elastomer Polyamid Plastic or Fiber NBR Rubber (Buna N/Nitrile) EPDM Rubber Cotton Fiber Polyester Fiber Cotton Polyester Fiber Blend Neoprene Cross-Linked Polyurethane Polyurethane Foam Friction Cover Don't Care TPU Polyurethane Hamid Elastomer Polyamid Plastic or Fiber NBR Rubber (Buna N/Nitrile) EPDM Rubber Cotton Fiber Polyester Fiber Cotton Polyester Fiber Blend Neoprene Cross-Linked Polyurethane Polyurethane Foam Reverse Cover Don't Care TPU Polyurethane Hamid Elastomer Polyamid Plastic or Fiber NBR Rubber (Buna N/Nitrile) EPDM Rubber Cotton Fiber Polyester Fiber Cotton Polyester Fiber Blend Neoprene Cross-Linked Polyurethane Polyurethane Foam Minimum Pulley Working Strength (Lbs/inch) Thickness Lowest Temperature Highest Temperature Conductivity Anti-Static Don't Care Texture Texture: Drive Side Don't Care Smooth Cover Matte Cover Friction Surface Brushed Surface Bare Surface Light Impregnation Fine Structure Rough Structure Bulked Fabric Surface Texture: Reverse Side Don't Care Smooth Cover Matte Cover Friction Surface Brushed Surface Bare Surface Light Impregnation Fine Structure Rough Structure Bulked Fabric Surface