Our standard formulations hold up to the abrasion resistance needed to give your average part optimal life. However, when your application is more aggressive, we offer some specialty formulations that will increase the life and productivity of your part. Regardless of durometer(hardness), they fall into two main categories:
• Polyester Urethane Formulations have a higher capacity for sliding abrasion resistance, which makes it ideal for applications like scraper blades and chute liners. Esters work best for angled abrasion applications, such as an abrasive slurry traveling down the chute.
• Polyether Urethane Formulations offer excellent impingement abrasion resistance, which makes it the choice for sandblast curtains and bumpers. Ethers have a higher rebound and that is especially important when the part takes an impact head on.
Polyurethanes are an elastomer which makes them ideal for abrasive applications because they yield easily and distribute stresses imposed on them. It is important to note that not just any elastomer can be used successfully. Used under the same conditions, a higher durometer could wear out faster than a softer elastomer. The angle of the particle impingement has a significant effect on which material should be used.