Acetal Homopolymer (Delrin)

Overview

The general features of the homopolymer Acetal resin are similar to those of the copolymer POM-C. However, the service temperature (under load) is slightly higher but the resistance to hydrolysisis and strong alkalis is slightly lower. POM-H is more commonly known as Delrin®. POM-H has a slightly higher mechanical strength than the POM-C but both are easy to machine and offer excellent dimensional stability.

Benefits:

• High fatigue resistance.
• Good dimensional stability.
• Low coefficient of friction.
• Good compressive strength, even at low temperature.
• Good shock resistance, even at low temperature.
• Excellent machinability especially used on automatic equipment.
• Being physiologically inert it is suitable for food contact.
• Can be used in water at 80°C.

Weaknesses:

• Compared to PA6 it has a lower abrasion resistance, particularly in dirty and dusty environments.

Applications:

It can be precision machined for intricate components with tight tolerances and is one of the most commonly used engineering plastics for mechanical applications such as:

• Bearings.
• Cams.
• Gears & gear wheels.
• Conveyor rollers.