Chlorosulfonated Polyethylene (CSM) rubber custom compounding
CSM is valued for its resistance to chemicals, oil, abrasion, weather and temperature extremes and ultraviolet light.
DuPont exited the chlorosulfonated polyethylene business in 2010, closing it’s only Hypalon™ rubber manufacturing facility. Preferred can help you find a Hypalon replacement for your products, either with CSM from another manufacturer or with another compound.
Chlorosulphonated polyethylene rubber properties
CSM rubber has poor fuel resistance and poor compression set resistance, which limits its use for sealing. Compounding with other polymers and ingredients will improve these properties.
CSM can be colored. Preferred produces chlorosulfonated polyethylene rubber in sponge, sheets, pellets or granules, slab, strip and calendared.
Various CSM properties and grades, created by modifying the chlorination and chlorosulphonation and type of polyethylene polymer, are available. Additional properties can be modified during compounding.
CSM applications
CSM is used for automotive hoses, gas and industrial applications, electric cable jacketing, machine parts, floor tiles, magnetic rubber, rubber coated cloth, coatings, gaskets, flexible tubes, rolls and linings. Special applications for chlorosulfonated polyethylene can include escalator handrails, diaphragms and lining for chemical processing equipment.
CSM trade names
Replacements for Hypalon rubber include Hailon chlorosulfonated polyethylene from Lianda (distributed by Alternative Rubber & Plastics) and TOSO-CSM®, extos® alkylated chlorosulphonated polyethylene from TOSOH of Japan and a variety of CSM products from Jiangxi Hongrun Chemical Co., Ltd.
Custom rubber compounding
Preferred Compounding is a full service custom rubber compounder. As a Preferred customer/partner, you gain access to our comprehensive support resources.
Full service and support
Preferred’s technical services staff includes chemists with decades of
experience. They formulate and optimize custom elastomeric compounds to achieve
the desired field performance, manufacturability and cost for your compounds.
Through the custom compounding recipe, we can engineer the extent and rate of curing, processing characteristics, final properties, performance and cost.
10,000 compounding ingredients
We work with more than 10,000 compounding polymers and other ingredients and more than 100 rubber mixing and processing variables.
We produce compounded elastomers in strips, slabs, pellets and calendered sheet. We also provide filtering by gear-pump straining.
For more information
If you would like assistance determining the right formulation for your rubber application or on improving the performance and cost of your current recipe, contact Joe Hudson by or at 330.798.4960.
