'Breakthrough' Acetal Homopolymer for High-Performance Gears

A new high molecular weight nucleated acetal homopolymer has been specially formulated for use in applications requiring high creep resistance and fatigue durability. Available from Delrin, now a polymer business unit within DuPont, grade 51HSE reportedly extends the ability of the material to replace metal, helping customers save cost and weight while reducing noise. It also is said to enable smart design concepts that are beneficial for achieving lower carbon footprints.

The Delrin business unit was established last month when DuPont has sold an 80.1% ownership interest in this business to TJC LP (TJC).

Testing shows the improvement in static gear strength of Delrin 51HSE is about 10%, but the real benefit comes reportedly comes from a two-fold improvement in durability, giving customers a cost-effective alternative over switching from metal gears or other more expensive solutions.

“Driving innovation remains an intrinsic element of our DNA,” said Sriram Nadathur, Delrin vice president and general manager. “Our customers demand materials that demonstrate unparalleled mechanical performance, exceptional durability, and low global warming potential, without compromising on design flexibility or ease of manufacturing. Innovations such as Delrin 51HSE are the reason why our customers know they can depend on us to deliver world-class resins that fit their most demanding end-use applications.”