Elastomer Service Properties: EU
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 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EU | general | Poor | BG (ASTM D2000) | Better hydrolysis resistance than AU; better low-temperature flexibility; lower oil/abrasion resistance than AU; not for steam, acids, bases, ketones | Polyurethane (Polyether EU) | 20-40 | 70 | 22 | MDI or TDI isocyanate | 1.05-1.25 | 400-700 | Fair | Low | -50 | 60-95 | 80 | 100 | 90 | -54 | Polyether-based polyurethane; better wet/humid aging than AU; used in hydraulic seals and pneumatic cylinders | Good | Good | Not recommended | 15-40 |
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