Aetna - Model Acetal Delrin - Semi-Crystalline Material - Brochure

Acetal provides high strength and stiffness while offering enhanced dimensional stability and ease of machining. A semi-crystalline material, Acetal also has a low coefficient of friction and good wear properties—especially in wet environments. Because it absorbs little moisture, Acetal demonstrates excellent stability for close-tolerance machined parts. In high-moisture or submerged applications, Acetal bearings can outperform nylon 4 to 1. This material is resistant to a wide range of chemicals, including many solvents. Acetal is available in a broad range of grades with properties addressing specific needs.