butyl
| Butyl | |
| Common Name | Butyl |
| ASTM D-2000 Classification | AA, BA |
| Military (MIL STD 417) | RS |
| Chemical Definition | Isobuylene Isoprene |
| General Characteristics | |
| Durometer Range (Shore A) | 40 - 90 |
| Tensile Range (P.S.I.) | 500 - 3000 |
| Elongation (Max. %) | 850 |
| Compression Set | Fair to Good |
| Resilience - Rebound | Fair |
| Abrasion Resistance | Fair |
| Tear Resistance | Good |
| Solvent Resistance | Poor |
| Oil Resistance | Poor |
| Low Temperature Usage (F°) | -10° to -60° |
| High Temperature Usage (F°) | to 250° |
| Aging Weather - Sunlight | Excellent |
| Adhesion to Metal | Good |
| Comment | |
Butyl rubber is impermeable to most common gases and has good resistance to sunlight and ozone. Butyl is normally satisfactory when exposed to animal and vegetable oils and oxidizing chemicals. Butyl is not recommended for use with petroleum solvent, coal tar and aromatic hydrocarbons. |
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