Polystyrene POM has high strength and durability along with improved dimensional stability and ease of machining. Polystyrene POM, as a semi-crystalline material, is also characterized by low coefficient of friction and good abrasion properties, especially in humid environments.

Although polystyrene POM absorbs a small amount of moisture, its physical properties remain constant in different environments. Low moisture absorption creates dimensional stability for mobility-resistant mechanical components.

In high humidity or groundwater use, POM polystyrene bearings perform better than nylon 4 to 1. Polystyrene POM is suitable for mechanical parts and electrical insulation that require strength and hardness. It is also resistant to a wide range of chemicals including many solvents.