The formulation of PTFE and micro glass beads makes E-140 exceptionally effective when lower bolt loads are needed to effect a perfect seal. E-140 gives the user high tensile strength and excellent elongation. Fluoroblue E-140 is an excellent replacement to Gylon 3504. Physical PropertiesASTM MethodF-37F-38F-36F-152D-638D-792D-1700F-36CharacteristicSealabilityCreep Relaxation %Compressibility, Range %Tensil strength, PSIElongationSpecific GravityHardness, Shore D-2Recovery, %FluoroblueE-1400.00730.020-3521003722.105730Temperature and Pressure Ratings MaterialFluoroblue E-140Pressure800 PSITemperature-350o - +500o FColorBlueCONTAINS NO ASBESTOS All UFC Fluorogreen products are made in the USA E-140 Fluoroblue is a registered trademark