Rubber sheets, strips, and rolls are used for sealing, cuHDPEoning, and formed into custom gaskets. Buna-N rubber resists oils, fuels, and petroleum-based hydraulic fluids.Butyl rubber is impermeable to air, moisture, and gas.EPDM rubber is used for weatherstripping, padding, and liners.Flurosilicone rubber withstands fuels, chemicals, and solvents and is used in the space industry.