Astlett Rubber Inc.: Synthetic Rubber

Fluroelastomers

Key Properties and Characteristics
Durometer (Shore A)	55-90	Tear Strength	F
Specific Gravity (Polymer)	1.85	Flame Retardent Properties	E
Tensile Strength Max-psi (Mpa)	2000 (13.8)	Weathering Characteristics	E
Low Temperature Brittle Point (C/F)	-40/-40	Oxidation Resistance	E
Resilience	F to G	Ozone Resistance	E
Compression Set	F to G	Oil Resistance	E
Heat Aging	E	Acid Resistance	G to E
Abrasion Resistance	G	Resistance to Alkali Substances	P to G
Key Characteristics Heat and chemical resistance.
Further Comments This is a family of rubbers designed for very high temperature operation. They can operate continuously somewhat in excess of 200°C depending on the grade, and intermittently to temperatures as high as 300°C. They have outstanding resistance to chemical attack by oxidation, acids and fuels. They have good oil resistance. However, at the high operating temperatures they are weak, so that any design must provide adequate support against applied forces. They have limited resistance to steam, hot water, methanol, and other highly polar fluids. They are attacked by amines, strong alkalis and many freons. There are standard and special grades and the latter can be designed to have special properties such as improved low-temperature resistance.
Legend: P=Poor; F=Fair; G=Good; E=Excellent

Please contact us if you are interested in purchasing this grade.