Chemically, PUR D44 is based on polyester polyol + diphenylmethane-4.4-diisocyanate (DESMODUR® 44). PUR D44 is a high-quality polyurethane with good abrasion resistance and structural strength. In comparison with PUR D15, this material is somewhat cheaper and more resistant to hydrolysis but less suitable for parts exposed to dynamic stress. PUR D44 should not be used at a long-term temperature of over +80 °C. However, short-term exposure to temperatures of up to +100 °C is possible. This material has a hardness of between approx. 65 Shore A and 60 Shore D.Information provided by Angst + Pfister |