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Rubber (Elastomer) Service Selection Guide
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most demanding applications throughout
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  Rubber (Elastomer) Service Selection Guide
Rubber, otherwise known as an elastomer or polymer is available in a number of molecular configurations or families. Our Elastomer Selection Guide is designed to let you examine the general properties of any family of elastomer (polymer). The ratings reflect the average performance of an elastomer family. Compounding and manufacturing techniques may improve or degrade the performance level noted in the guide.

"We do not want to sell you our elastomer, we want to sell you the right elastomer."

Polymer Selection
Common Name Hydrogenated-Nitrile
ASTM Name Hydrogenated Nitrile Butadiene Rubber
ASTM D1418 designation HNBR
Specific Gravity (gm/cm3) 0.95

Physical Properties at 21C (70F)

1-Excellent . . . 5-Not Recommeded
Tensile Strength -Reinforced, max (psi) 4350
Elongation % - Reinforced, max 450
Compression Set 1.5
Resilience 2
Permeability Coef.-Nitrogen(1/10^8cm^2)(1/10sec)(1/10atm)
Electrical  Resistivity 0
Strain Relaxation
Mechanical Properties 1-Excellent . . . 5-Not Recommeded
Impact Strength 0
Abrasion Resistance 1
Tear Resistance 0
Cut Growth 0

Temperature Effects

1-Excellent . . . 5-Not Recommeded
Tensile Strength % change @ 212F
Tensile Strength % change @ 350F
Elongation % change @ 212F
Elongation % change @ 350F
Strain Relaxation @ 212F
Heat Aging @ 212F
Flame Resistance 0
Low Temp - Tg (glass transition)
Low Temp Stiffening (F)
Low Temp Brittle Point (F)

Environment Resistance

1-Excellent . . . 5-Not Recommeded
Weather--Sunlight Aging
Oxidation 2
Ozone
Radiation
Water
Steam 2

General Chemical Resistance

1-Excellent . . . 5-Not Recommeded
Alkali (Base) Dilute 1
Alkali (Base) Concentrated 2
Acid Dilute 1
Acid Concentrated 2
Ketones, Oxygenated Solvents (mw < 80) 5
Chlorinated Hydrocarbons, Degreasers 3
Aliphatic Hydrocarbons, Kerosene, etc. 1
Aromatic Hydrocarbons, Benzol, Toluol, etc. 3
LP Gases, Fuel Oils 1
Alcohols (mw < 80) 1
Animal and Vegetable Oils
Synthetic Lubricants - Diester 0
Brake Fluid, non-petroleum base

Hydraulic Fluids Resistance

1-Excellent . . . 5-Not Recommeded
Petroleum Base
Water Glycol
Silicate Ester
Phosphate Ester 5

Lubricating Oils Resistance

1-Excellent . . . 5-Not Recommeded
High Aniline (190F +)
Low Aniline Point

Refrigerants Resistance

1-Excellent . . . 5-Not Recommeded
Ammonia
Halogenated
Methyl Chloride
Halogenated + Oil

Taste (1=neutral .... 5=foul)

2.5

Odor (1=neutral .... 5=foul)

3

Non-Staining

Bonding to Rigid Materials

1

SEALS EASTERN
MOLDING SUCCESS FOR 50 YEARS.

LEGAL NOTICE: Seals Eastern makes no representations or warranties, implied or otherwise, on the accuracy or completeness of the data herein.