Solid Elastomers

LGS carries a wide variety of solid elastomers. From standard commercial grades to specialty elastomers LGS has you covered.

Commercial Grade:

Choosing your rubber product::

Durometer

Durometer – is a measure of the hardness of a material.
For most solid industrial elastomers durometer ranges from 30-70 Shore A.

Natural Rubber – NR

Synthetic Natural Rubber (Polyisoprene) IR

Good at abrasion, tear resistant and flame resistant
Poor at heat, ozone, UV, oil, & fuel resistance
Higher in cost than Natural Rubber
Temperature: -40 to 180 degrees Fahrenheit
Easier to produce than organic natural rubber •More resistant to grease and oil than organic rubber.

Neoprene (Polychloroprene) – CR

Initially a trade name for DuPont
Good at general purpose elastomer
Moderate oil & ozone resistance
Compression set resistant
Fungus resistant & flame retardant characteristics if high content of polychloroprene is in compound.
Poor at limited fuel resistance
Temperature: -40 to 220 degrees Fahrenheit
Applications
- Industrial Gaskets
- Footwear (Rubber Boots)
- Protective aquatic clothing

EPDM (ethylene propylene polymer)

Referred to as EPDM, EPT, EP or some variation in ethylene propylene
Is considered to be the most economic polymer, widest environmental resistance.
Good at temperature resistance
Ozone & UV resistant
Non-staining to painted surfaces
NBC resistant
Poor at fuel & Oil resistance and difficult to bond to
Temperature: -60 to 240 degrees Fahrenheit (Peroxide curing system) -60 to 300 degrees Fahrenheit
Applications
- Rubber roofing applications
- Automotive Applications
- Outdoor Seals

Butyl – (isobutylene isoprene) – IIR

Tear resistance
Gas impermeability
Ozone resistance
Alkali resistant
Poor at fuel & oil resistance
Temperature: -40 to 240 degrees Fahrenheit
Applications
- Inner tubes for tires
- Tank Liners
- Pharmaceutical tube stoppers

Hypalon – (chlorosulfonated polyethylen – CSM)

Is a registered trademark of DuPont
Developed as a higher temperature replacement for Neoprene, more expensive
Oxidation resistant
Sunlight & UV – Ozone resistance
Moderate alkali resistant
Fuel & oil resistance similar to Neoprene
Temperature: -40 to 240 degrees Fahrenheit
Applications
- Under the hood automotive application
- Inflatable boats
- Roofing membrane

Buna-N (acrylonitrile butadiene) – NBR

Epichlorohydrin ECO, ECH

Fluoroelastomer – (fluorocarbon) – FKM

Common trade name of VITON, FLUOREL, & DYNEON
The Fluorine content of the product makes it almost universally applicable
Excellent fuel & oil resistance
High temperatures
Compression set resistant
Great aging characteristics
Flame retardant
High manufacturing cost
Temperature: 0 to 450 degrees Fahrenheit
Applications
- Fuel seals & O-rings
- Fuel Injection seals
- Oil & gas refining seals

Silicone Rubber

Best noted for its broad temperature range
High & Low temperature applications
Excellent ozone resistance
Excellent compression set resistance
Poor at tear & tensile strength, abrasion resistance and moderate oil resistance
Temperature: -80 to 500 degrees Fahrenheit
Applications
- Food processing
- Flexible Heaters
- Medical tubing
- High temperature seals & O-rings

Fluorosilicone Rubber

Similar to silicone but offers oil & fuel resistance
Good at high temperature applications
Excellent ozone resistance
Excellent compression set resistance
Excellent oil resistance
Poor at tear strength, tensile strength, abrasion resistance and manufacturing costs
Temperature: -80 to 500 degrees Fahrenheit
Applications
- High temperature applications where fuel & oil are present