Acetal (Delrin) is a high-performance engineering thermoplastic widely used in injection molding for precision components requiring low friction, high strength, and excellent wear resistance. It is commonly used as a metal replacement in mechanical and load-bearing applications.
Acetal/Delrin Material & Capabilities
Acetal, also known as polyoxymethylene (POM), is a thermoplastic polymer used in various applications due to its excellent mechanical properties, low friction coefficient, and chemical resistance.
Acetal/Delrin/POM Advantages
- Mechanical Strength: Acetal has high tensile strength, stiffness, and fatigue endurance, making it suitable for applications where mechanical performance is crucial, such as gears, bearings, and valve components.
- Low Friction: It exhibits low friction and excellent wear resistance, making it a preferred material for moving parts in machinery and automotive components.
- Chemical Resistance: Acetal resists many chemicals, solvents, and fuels, making it suitable for applications in the automotive, aerospace, and chemical processing industries.
- Dimensional Stability: It maintains its shape and dimensions even in challenging environments, including high temperatures and exposure to moisture.
- Electrical Properties: Acetal has good electrical insulating properties, making it useful in electrical components and connectors.
- Food Contact Approval: Some grades of acetal are approved for use in food-contact applications due to their inertness and compliance with food safety regulations.
Despite its advantages, acetal does have some limitations. It is susceptible to degradation when exposed to ultraviolet (UV) radiation and certain chemicals, such as strong acids. Additionally, it can be brittle in thin-walled applications and can be sensitive to high temperatures.
Temperature Range for Application:
- Acetal operates between -40C and 80C (-40F to 175F)
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