They are an ideal choice in applications where high-temperature sealing is needed. PTFE Bellows are made of polytetrafluoroethylene (PTFE) and can withstand high degrees Celsius. They seal, compress, clamp, and seal gas, liquids, and gasses. They're a fantastic choice in applications that require high-temperature sealing. Rubber Bellows | Rubber Expansion Bellows | Expansion Bellows | Neoprene Rubber Bellows | Non Metallic Bellows | Rubber Bellows, Industrial Rubber Bellows, Silicone Rubber Bellows, Hypalon Rubber Bellows, Neoprene Rubber Bellows, Butyl Rubber Bellows, Leather Bellows, Foam Leather Bellows, Fabric Bellows, High Temperature Fabric Bellows, Ceramic Fabric Bellows, Rubber Coated Fabric Bellows, Industrial Rubber Coated Fabric Bellows, Glass Fabric Bellows, Canvas Bellows, Expansion Joints, Rubber Bellows Expansion Joints, Double Arch Expansion Joints, High Temperature Expansion Joints, Single Arch Expansion Joints, High Pressure Expansion Joints, Bellow Covers, XYLAN Coatings, Xylan Nut and Bolt Coatings, Xylan Coating Fastener, Nut Xylan Coating, Shape Bellows, Octagonal Rubber Bellows, Circular Canvas Bellows, Rectangular Rubber Bellow, Square Bellows, Hexagonal Bellows, Rexine Bellows