Amorim Industrial Solutions: Material Data Sheet



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Application

General Sealing

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Amorim Industrial Solutions reserves the right to change product specifications at any time without notice or obligation

CR-55R

Cork/synthetic rubber blend with medium compressibility and oil resistance. A good general purpose sealing material offering good performance in a wide variety of applications.

Polymer
NBR/nitrile
Color
Natural

Typical Physical Characteristics (Original)

Density 560 Kg/m3 to 880 Kg/m3

Hardness (Shore A) 50 to 70

Tensile Strength Min 1.03 M Pa

Compressibility (400 psi) 40 % to 50 %

Recovery (400 psi) Min 80 %

Immersions

Flexibility factor (Oven Aged, 70 h at 100 ºC) (F=16)

Volume Change, ASTM Oil #1 (70 h at 100 ºC) -5 % to 10 %

Volume Change, IRM 903 (70 h at 100 ºC) 20 % to 40 %

Volume Change, Fuel A (22 h at RT) 0 % to 15 %

Compression Set (22 h at 70 ºC)

Max 45 %