Polyurethane (PU) is a versatile elastomer with excellent abrasion resistance and good chemical resistance to oils, fuels, greases and dilute acids. Performance varies with formulation (polyester-based vs polyether-based).
Polyurethane is not in the Bürkle source that supplies the other 24 materials on this site. The data below comes from PSI Urethanes (lab-tested at 21 °C / 70 °F, A-B-C scale), cross-referenced with Engineering Toolbox and Darwin Microfluidics. Polyurethane formulations vary widely; always verify with your specific resin manufacturer.
| Chemical | Concentration | Rating (21 °C) | CAS |
|---|---|---|---|
| 20 % | 64-19-7 | ||
| pure | 67-64-1 | ||
| aqueous | 7446-70-0 | ||
Ammonia | anhydrous | 7664-41-7 | |
| aqueous | 12125-02-9 | ||
| aqueous | 1336-21-6 | ||
Ammonium Phosphate | aqueous | 7783-28-0 | |
| aqueous | 7783-20-2 | ||
| aqueous | 17194-00-2 | ||
| pure | 71-43-2 | ||
| aqueous | 10043-35-3 | ||
| gas | 106-97-8 | ||
| aqueous | 10043-52-4 | ||
| aqueous | 1305-62-0 | ||
| aqueous | 7778-54-3 | ||
| gas | 124-38-9 | ||
| pure | 56-23-5 | ||
| pure | 8001-79-4 | ||
| gas | 7782-50-5 | ||
| 2 % | 7738-94-5 | ||
| aqueous | 77-92-9 | ||
| 10 % | 7758-98-7 | ||
| pure | 110-82-7 | ||
| pure | 60-29-7 | ||
| pure | 64-17-5 | ||
| pure | 141-78-6 | ||
| pure | 107-21-1 | ||
| aqueous | 50-00-0 | ||
| concentrated | 64-18-6 | ||
| pure | — | ||
| pure | 56-81-5 | ||
| pure | 110-54-3 | ||
| 20 % | 7647-01-0 | ||
| 37 % | 7647-01-0 | ||
Hydrogen | gas | 1333-74-0 | |
| 30 % | 7722-84-1 | ||
| pure | 8008-20-6 | ||
| pure | 8001-26-1 | ||
| aqueous | 7786-30-3 | ||
| aqueous | 1309-42-8 | ||
| pure | 7439-97-6 | ||
| pure | 67-56-1 | ||
| pure | 78-93-3 | ||
| pure | 8012-95-1 | ||
| pure | 8030-30-6 | ||
| solid | 91-20-3 | ||
| 2 % | 7697-37-2 | ||
| 10 % | 7697-37-2 | ||
| pure | 112-80-1 | ||
| gas | 10028-15-6 | ||
| pure | 57-11-4 | ||
Perchloroethylene | pure | 127-18-4 | |
| pure | 108-95-2 | ||
| 20–70 % | 7664-38-2 | ||
| 85 % | 7664-38-2 | ||
| 10 % | 1310-58-3 | ||
| aqueous | 7761-88-8 | ||
| aqueous | 7647-14-5 | ||
| 20 % | 1310-73-2 | ||
| 45 % | 1310-73-2 | ||
| 1 % | 7681-52-9 | ||
| pure | 57-11-4 | ||
| 5–10 % | 7664-93-9 | ||
| 10–50 % | 7664-93-9 | ||
Tannic Acid | aqueous | 1401-55-4 | |
| aqueous | 87-69-4 | ||
| pure | 109-99-9 | ||
| pure | 108-88-3 | ||
| pure | 79-01-6 | ||
Trisodium Phosphate | aqueous | 7601-54-9 | |
| pure | 8006-64-2 | ||
| pure | 1330-20-7 |
Ratings at 21 °C (70 °F). Source: PSI Urethanes, cross-referenced with Engineering Toolbox. Formulation and concentration affect actual performance.
Conveyor rollers, printing rollers, drive wheels
Hydraulic seals, O-rings, wear rings, scrapers
Tank linings, pipe coatings, floor coatings
Polyurethane may degrade when exposed to:
Tip: For ketones and esters, use PTFE or FEP. For aggressive acids at high temperatures, use PVDF. For oil-based applications, PU outperforms EPDM and silicone.
