... Fresh water, Sea water,Salt, Strong base,Weak base,Food High elasticity-20°C~+85°C Hypalon(X2)Fresh water,Sea water,Salt, Strong base,Weak base,Weak ... 110°CShort time +120°C Neoprene(X4)Fresh water,Sea water,Salt, Strong base,Weak base,Weak acid Light-proof,Aging resistant -25°C ... -20°C~+200°CShort time +250°C PTFEFresh water, Sea water, Salt,Weak base,Weak acid,Natural gas, Oil,Food. High performance ...