Elastomer Service Properties: AU
Service temperature limits, chemical resistance ratings, mechanical properties, and cure data for engineering elastomers and rubber compounds
| elastomer | grade or variant | acid resistance | astm designation | chemical resistance notes | common name | compression set pct (%) | compression set temp C | compression set time hr | cure system | density g cm3 (g/cm3) | elongation at break pct (%) | fuel resistance | gas permeability | glass transition temp C (C) | hardness range shore a | industry specifications | max continuous temp C (C) | max peak temp C (C) | max service temp C (C) | min service temp C (C) | notes | oil resistance | ozone resistance | steam resistance | tensile strength mpa (MPa) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AU | general | Poor | BG (ASTM D2000) | Best abrasion resistance of any elastomer; excellent mineral oil and grease resistance; not for hot water, steam, ketones, esters, alcohols, strong acids/bases | Polyurethane (Polyester AU) | 20-40 | 70 | 22 | MDI or TDI isocyanate | 1.10-1.25 | 300-700 | Fair | Low | -50 | 60-95 | MIL-R-3065 | 80 | 100 | 90 | -40 | Polyester-based polyurethane; higher oil resistance and abrasion resistance than EU; hydrolysis risk in humid environments | Excellent | Good | Not recommended | 20-50 |
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