Chloroprene (CR)

Chloroprene known as neoprene, is made from chlorine and butadiene. These rubbers are high resistant to oils, greases, many other petroleum products, and excellent to abrasion, impact and damage from flexing and twisting.

Chloro-sulfonated Polyethylene (CSM)

These rubbers have good tensile strength, elongation and excellent ozone resistance. The CSM rubbers are high resistant to oxidizing chemicals such as sulfuric acid.

Ethylene Propylene (EPDM)

These rubbers are low cost terpolymers having high tensile strength and elongation with excellent resistance to oxygen and ozone. They also have good flexing characteristics, low compression set and good heat resistance.

Chloronated Isobutylene Isoprene (CIIR)

CIIR is better known as chlorobutyl, is inherently resistant to ozone and oxidizing chemicals including some mineral acids and ketones with good tensile strength,elongation, dampening characteristics and low gas permeability.

Fluoroelastomers (FKM)

Fluoroelastomers are high performance elastomers which have outstanding resistance to chemicals,oils and heat compared to any other elastomer. These elastomers are available as copolymers or terpolymers. Specifically compounded terpolymers are used in the expansion joint industry.

Silicone Rubbers (SL)

Silicone rubbers have good ozone and weather resistance, but poor resistance to flue gas constituents.

Fluoroplastics

Fluoroplastics are thermoplastic resins of general paraffin structures that have all or some of the hydrogen replaced with fluorine. Polytetrafluoroethylene resin, commonly called PTFE, is the main fluoroplastic used in the production of expansion joints.