Hypalon® Rubber (CSM)

Hypalon® rubber (CSM – Chlorosulfonated Polyethylene) is a high-performance synthetic elastomer known for its exceptional resistance to chemicals, weathering, ozone, UV radiation and high temperatures. At Everest Rubber, we manufacture Hypalon® rubber sheets, Hypalon® rolls and Hypalon® gaskets for the chemical processing, construction, electrical and automotive industries. ISO 9001 certified manufacturer with fast delivery across the USA.

Hypalon® rubber sheet - chemical, weather and heat resistant CSM rubber

High-Performance Hypalon® Rubber for Demanding Applications

Hypalon in roll and sheet form is a chlorosulfated synthetic polyethylene rubber with high resistance to chemicals and extreme temperatures, as well as oils, and is used in a wide range of applications including automotive and high performance industrial applications.

Ideal gasket to manufacture flanges or seals in the chemical process industry, extraordinary aging-resistance due to weather exposure and heat, not affected by sunlight and outdoor exposure.

What is Hypalon Rubber?

Hypalon in rolls and sheets. Hypalon is a synthetic rubber, product of the chlorosulfonation reaction of polyethylene. Its international abbreviation is CSM (Chlor Sulfonated Methylene).

CSM rubbers have excellent resistance to oxidation, weathering and ozone, with extraordinary color fastness, precisely for this reason inflatable boats are manufactured with this material.

Hypalon Rubber Properties:

  • Shore “A” hardness: 60-65
  • Tensile strength, minimal: 1200 PSI
  • Elongation, minimal: 430 %
  • Temperature Range: -13°F a 329°F
  • Oils: Good
  • Acids: Excellent
  • Outdoors: Excellent
  • Abrasion: Good

The ideal gasket for manufacturing flanges or gaskets in the chemical processing industry, outstanding resistance to weathering and heat aging, unaffected by sunlight. Resistant to strong acids and bases and to a wide variety of chemicals. For extreme chemical resistance, also see fluorosilicone O-rings.

Product Dimensions:

  • Plate: 3'3" x 3'3", 1/16" to 1" thickness
  • Sheets: 3'3" x 32'9 " long, with 1/16" to 1/4" thickness

Hypalon Rubber Sheet Characteristics:

  1. Impermeable to water and acids.
  2. Excellent aging.
  3. Very good resistance to hydrocarbon solvents. For oil-resistant applications, consider nitrile rubber.
  4. Good flame resistance and self-extinguishing.
  5. Resistant to most inorganic chemicals, except chlorine, concentrated acids and oxidizers.
  6. Moderate resistance to aliphatic and aromatic hydrocarbons.

Hypalon Rubber Applications

  1. The construction industry or in the electrical industry for its waterproofing capacity.
  2. Sealing gaskets against chemical agents in flanges, fittings, plates, doors, etc.
  3. Protections and coatings of equipment in chemical or automotive industries.
  4. Applications requiring a rubber that resists up to 135°C and with good flame resistance. For higher temperatures, see silicone rubber.
  5. Expansion joints.

Hypalon Rubber Chemical Resistance:

It is generally recommended for applications with strong acids, freons, hydroxides, ozone, alcohols, and alkaline solutions as well as sodium hypochlorite.

Hypalon in roll and sheet form is a chlorosulfated synthetic polyethylene rubber with high resistance to chemicals and extreme temperatures, as well as oils, and is used in a wide range of applications including automotive and high performance industrial applications.

Frequently Asked Questions about Hypalon® Rubber

What is Hypalon rubber?

Hypalon® is a synthetic rubber (CSM - Chlorosulfonated Polyethylene) produced by the chlorosulfonation of polyethylene. It offers excellent resistance to oxidation, weathering, ozone, chemicals and high temperatures, making it ideal for demanding industrial and outdoor applications.

What is Hypalon rubber used for?

Hypalon rubber is used for gaskets and seals in the chemical process industry, roofing and waterproofing membranes, inflatable boats, cable jacketing, automotive components and expansion joints. It is ideal for applications requiring chemical, weather and heat resistance.

What is the temperature range of Hypalon rubber?

Hypalon rubber has a temperature range of -13°F to 329°F (-25°C to 165°C). It also offers good flame resistance and self-extinguishing properties.

Is Hypalon still available?

DuPont discontinued Hypalon® production in 2009, but CSM (chlorosulfonated polyethylene) rubber is still manufactured by other suppliers and remains available through specialized industrial rubber manufacturers like Everest Rubber.