What are the characteristics of POM plastic?

Polyoxymethylene (POM) plastic, commonly known as acetal or Delrin, is a high-performance engineering thermoplastic known for its excellent mechanical properties. It is used in a wide range of applications, especially where strength, stiffness, and precision are critical.

Mechanical Strength

• High Tensile Strength: POM plastic offers excellent tensile strength, meaning it can resist stretching or breaking under tension. This makes it suitable for load-bearing applications.
• Stiffness: POM is a very rigid material with a high modulus of elasticity, making it ideal for parts that need to maintain their shape under stress.

Durability

• Wear Resistance: POM exhibits outstanding wear resistance, especially in applications involving moving parts. It is often used for gears, bearings, and other mechanical components that experience continuous friction.
• Low Friction: With low friction properties, POM reduces wear between surfaces, ensuring smooth operation and longer lifespans for components.

Thermal Resistance

• Temperature Stability: POM maintains its mechanical properties in a wide temperature range, typically from -40°C to 100°C, and can withstand occasional exposure to higher temperatures.
• Thermal Expansion: It has a low coefficient of thermal expansion, making it stable even when exposed to fluctuating temperatures.

Chemical Resistance

• Resistant to Chemicals: POM plastic is resistant to most solvents, fuels, and oils, making it suitable for use in harsh chemical environments.
• Hydrolysis Resistance: It also has good resistance to water and moisture, preventing degradation in humid conditions.

Conclusion

POM plastic is a robust, durable, and versatile material with exceptional mechanical strength, wear resistance, and chemical stability, making it a top choice for demanding applications in industries like automotive, electronics, and engineering.