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Biir — Iir
- Elastomer
- Iir
- Grade Or Variant
- Biir
- Acid Resistance
- Excellent
- ASTM Designation
- AA, Ba (ASTM D2000)
- Chemical Resistance Notes
- Same As CIIR; Bromine Functionality Enables Faster Cure and Better Co-Cure compatibility; Slightly Better Adhesion to Metals and Fabrics
- Common Name
- Bromobutyl Rubber
- Compression Set Pct (%)
- 25-50
- Compression Set Temp C
- 100
- Compression Set Time Hr
- 22
- Cure System
- sulfur, resin, Zinc oxide, Or Peroxide
- Density G CM3 (g/cm3)
- 1.15-1.35
- Elongation at Break Pct (%)
- 400-800
- Fuel Resistance
- Poor
- Gas Permeability
- Very Low
- Glass Transition Temp C (C)
- -70
- Hardness Range Shore a
- 35-95
- Max Continuous Temp C (C)
- 130
- Max Peak Temp C (C)
- 150
- Max Service Temp C (C)
- 130
- Min Service Temp C (C)
- -50
- Oil Resistance
- Poor
- Ozone Resistance
- Excellent
- Steam Resistance
- Good
- Tensile Strength Mpa (MPa)
- 7-17