Natural (NR)

General Guidelines

Common Name: Natural/Gum Rubber

Chemical Name: Polyisoprene

Properties: Excellent physical properties including High Tensile Strength, Abrasion resistance, rebound elasticity, flexibility, adhesive properties, high tear strength, and low temperature resistance.  Poor resistance to petroleum-based fluids.

Size Sheet Range: Width: .75” -60” Thickness: .010” – 1.00” Length: Min 60’Ft
Uses: Belting, Gaskets, Flooring, Matting, Noise Dampening Applications, Tires

Note- Property values are all based on cured elastomers

 

 


Common Name: Natural/Gum Rubber

Chemical Name: Polyisoprene

Properties: Excellent physical properties including High Tensile Strength, Abrasion resistance, rebound elasticity, flexibility, adhesive properties, high tear strength, and low temperature resistance, . Poor resistance to petroleum-based fluids.

Size Sheet Range: Width: .75” -60” Thickness: .010” – 1.00” Length: Min 60’ Ft
Uses: Belting, Gaskets, Flooring, Matting, Noise Dampening Applications, Tires

Durometer Range: 20 – 100 Shore A

Elongationa: 500% to 900%

a- Range given based on Hardness

Abrasion Resistance: Excellent

Compression Set: Excellent

Flame Resistance: Poor

Flex Cracking Resistance: Excellent

Impact Resistance: Excellent

Resilience/Rebound: Excellent

Tear Resistance: Very Good

Temperature Rangeb (Service): -60°F to 175°F

b- Cured rubber temperature operating service range

Ozone Resistance: Poor

Steam Resistance: Fair/Good

Weather Resistance: Poor

Oxidation Resistance: Good

Gas Permeability: Fair/Good

Sunlight Resistance: Poor

Water Resistance: Very Good

Chemical Resistance: Most moderate chemicals, wet or dry, organic acids, alcohols, ketones, aldehydes.
Chemical Attack: Ozone, strong acids, fats, oils, greases, most hydrocarbons.

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