Solid Elastomers

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

Sample Material Groups

Commercial Grade:

Neoprene
Nitrile (Buna-N)
EPDM
Pure Gum (Natural)
Silicone
Butyl
Hypalon,
Cloth-inserted, and more.

Choosing your rubber product::

What is the maximum temperature requirement?
What level of chemical resistance is required?
What level of tensile strength is required?
Does the application require a fabric reinforcement?
What are the specification requirements?
What level of ozone resistance is required?

Elastomers 101

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

The “organic isoprene” rubber product.
Good at abrasion & tear resistant
Poor at heat, ozone, UV, oil, & fuel resistance & price stability
Temperature: -40 to 180 degrees Fahrenheit
Large elongation or stretch
High resilience
Extremely waterproof

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

Referred to as nitrile or NBR
Is the least expensive polymer associated with fuel resistance
Fuel & Oil resistant
Resistant to petroleum based lubricating oils, & transmission fluid
Compression set resistant
Low gas permeation rates
Poor at ozone resistance
Temperature: -40 to 220 degrees Fahrenheit
Applications
- Disposable gloves
- Automotive belts
- Hoses
- Gaskets & Orings

Epichlorohydrin ECO, ECH

Commonly referred to as ECO or ECH, abbreviation assigned by ASTM
Developed for wider temperature range and resistance to oils & fuels
Bridges the gap between Nitrile
Good at sunlight & UV
Ozone resistance
Oils, solvents, alkalis & Fuels
High manufacturing cost is High
Metal bonding – corrosive to metal
Poor at abrasion resistance
Temperature: -60 to 240 degrees Fahrenheit
Applications
- Automotive seals, gaskets & O-rings

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

Specs

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