Product Overview
Acetal-Engineering Thermoplastic
Acetal, also known as polyoxymethylene (POM), Delrin, or Acetron, is a versatile and widely used engineering thermoplastic known for its high mechanical strength, low water absorption, and excellent dimensional stability. With its low friction, machinability, and exceptional resistance to wear, acetal is a preferred material in applications requiring precision and durability.
Features and Benefits:
- Mechanical Strength: Perfect for high-stress applications, Acetal can handle heavy loads with ease.
- High Thermal Stability: Withstands extreme temperatures, maintaining its properties in harsh environments.
- Chemical Resistance: Resistant to a wide range of chemicals, including acids and solvents, ensuring longevity and reliability.
- Low Moisture Absorption: Performs consistently even in humid conditions, keeping its integrity intact.
- Machinable: Easy to machine into almost any shape.
Applications:
- Aerospace: Ideal for high-temperature and high-stress components.
- Manufacturing: Excellent wear resistance makes acetal perfect for gears and conveyor belts.
- Automotive: Durable and heat-resistant, perfect for various automotive parts.
- Electronics: Great for insulative and heat-resistant components.
- Industrial Machinery: Robust and long-lasting, suitable for parts that need to withstand tough conditions.
HomoPolymer Acetal Vs. Copolymer Acetal
Homopolymer acetal, also known by the brand name Delrin, offers exceptional mechanical strength, stiffness, and low friction, making it ideal for precision parts such as gears, bearings, and bushings. Its high fatigue endurance and dimensional stability ensure reliable performance in demanding applications. However, it is more susceptible to thermal degradation and has reduced resistance to hydrolysis and strong alkaline environments, limiting its use in high moisture or chemically aggressive conditions.
Copolymer acetal provides enhanced resistance to moisture, chemicals, and high pH environments, making it suitable for applications such as plumbing fixtures, fuel system components, and medical devices. It features lower porosity and better thermal stability, reducing the risk of centerline porosity in thick sections. While it may not match the mechanical strength and stiffness of homopolymer acetal, its superior chemical resistance and stability under thermal stress make it a versatile choice for challenging environments while also being more cost effective.
Brand Names: Delrin, Acetron