Hypalon Rubber
Chlorosulphonated Polyethylene (CSM), widely known as Hypalon®, can in some respects be regarded as a superior type of chloroprene, having better heat ageing, chemical resistance and excellent low gas permeability. Ozone and weathering resistance is also excellent and electrical properties are good. Low temperature flexibility and oil resistance is similar to chloroprene.
Hypalon has poor fuel resistance and dynamic sealing applications are not recommended in view of its poor compression set.
Typical applications include static seals and any components likely to suffer hot and humid weather conditions or exposure to hot liquids and gases.
Hypalon® and Neoprene® are registered trademarks of DuPont Performance Elastomers.