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Type-W — Cr
- Elastomer
- Cr
- Grade Or Variant
- Type W
- Acid Resistance
- Good
- ASTM Designation
- Bc (ASTM D2000)
- Chemical Resistance Notes
- Crystallization-Resistant grade; Better Low-Temp Flexibility and Dynamic Performance Than Gn types; Superior Heat Aging and Oxidation Resistance
- Common Name
- Neoprene Type W
- Compression Set Pct (%)
- 25-40
- Compression Set Temp C
- 100
- Compression Set Time Hr
- 22
- Cure System
- Metal Oxide
- Density G CM3 (g/cm3)
- 1.23-1.45
- Elongation at Break Pct (%)
- 400-800
- Fuel Resistance
- Fair
- Gas Permeability
- Medium
- Glass Transition Temp C (C)
- -45
- Hardness Range Shore a
- 40-80
- Max Continuous Temp C (C)
- 100
- Max Peak Temp C (C)
- 120
- Max Service Temp C (C)
- 120
- Min Service Temp C (C)
- -45
- Oil Resistance
- Good
- Ozone Resistance
- Excellent
- Standard
- MIL-R-6855 Class 1
- Steam Resistance
- Fair
- Tensile Strength Mpa (MPa)
- 14-25
- TR10 Temp C
- -42
Source: MIL-R-6855 Class 1