Performance Characteristics
										
													
														NBR 
													
													
													
														EPR 
													
													
													
														Fluoroelastomer 
													
													
													
														Fluoropolymer 
													
													
													
														Composites 
													
													
													
														Polyurethanes 
													
													
									
										
													
														Spring Loaded and Springless 
													
													
													
														Composite Heel 
													
													
													
														Homogenous 
													
													
													
														Metal or Rubber-covered Metal Seal Casing 
													
													
									
										
													
														Cryogenic to 500 °F (Cont) 
													
													
									
										
													
														Various (depending on style, including General Service,  Solvent, Jet Fuels, and Corrosive Conditions) 
													
													
									
										
													
														Vacuum to 10000 psi
													
													
									
										
													
														Static to over 5000 ft/min
													
													
													
														Static to over 25.4 m/sec