Astlett Rubber Inc.: Synthetic Rubber

Hydrogenated Nitrile

Key Properties and Characteristics
Durometer (Shore A)	45-90	Tear Strength	F to G
Specific Gravity (Polymer)	.98-1.0	Flame Retardent Properties	P
Tensile Strength Max-psi (Mpa)	3000 (20.7)	Weathering Characteristics	G
Low Temperature Brittle Point (C/F)	-34/-30	Oxidation Resistance	G to E
Resilience	G	Ozone Resistance	E
Compression Set	G	Oil Resistance	E
Heat Aging	G to E	Acid Resistance	G
Abrasion Resistance	G	Resistance to Alkali Substances	G
CAS Number 88254-10-8
Key Characteristics Similar to NBR. Best in high flex, high tensile applications.
Further Comments Properties depend on the acrylonitrile (ACN) content and on the degree of hydrogenation. They can be tailored to particular applications but have the general advantage over standard nitrile rubber of having higher temperature resistance and higher strength. They have good high temperature oil and chemical resistance and are resistant to amines. They are suitable for use in methanol and methanol/hydrocarbon mixtures if the correct ACN level is selected. They have good resistance to hot water and steam. They can have excellent mechanical properties, including strength, elongation, tear, abrasion resistance, compression set and extrusion resistance. For the best properties, peroxide curing is used, unless low hysteresis is required. They are reported to be satisfactory up to temperatures around 180°C in oil. Fully saturated grades have excellent ozone resistance. They have poor resistance to some oxygenated solvents and aromatic hydrocarbons.
Legend: P=Poor; F=Fair; G=Good; E=Excellent

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