Acetal Homopolymer

Acetal Homopolymer: Characteristics, Applications, and Expertise

At PMC, we specialize in working with acetal homopolymer, a high-performance engineering resin known for its strength, resilience, and excellent machinability. Acetal homopolymer resin is widely used across industries that demand precision and durability, offering superior performance in mechanical, automotive, and industrial applications.

What is Acetal Plastic?

Acetal plastic, often referred to as polyoxymethylene (POM), is a crystalline thermoplastic engineered for high-stress and high-load applications. Acetal homopolymer resin represents the premium end of acetal materials, offering enhanced tensile strength, rigidity, and creep resistance compared to acetal copolymer resin. These properties make it ideal for complex components requiring dimensional stability and low friction.

Key Characteristics of Acetal Homopolymer Resin

Acetal homopolymer resin delivers exceptional mechanical properties, making it a go-to material for demanding applications:

  • High Strength and Rigidity: With tensile strength ranging from 6,380 to 9,470 psi, acetal homopolymer is tough enough for high-load applications.
  • Low Friction and High Wear Resistance: Ensures long-lasting performance in moving parts like gears and bearings.
  • Dimensional Stability: Retains its shape and size even under varying temperatures and pressures.
  • Low Moisture Absorption: Maintains integrity in humid environments, making it ideal for plumbing and irrigation systems.
  • Wide Operating Temperature Range: Performs reliably between 245°F and 342°F, depending on load and pressure conditions.

Applications of Acetal Homopolymer

PMC utilizes acetal plastic for a wide range of applications that require strength, precision, and reliability. Common applications include:

  • Automotive Components: Ventilation systems, fuel system parts, cooling system components, and safety restraints.
  • Industrial Machinery: Bearings, gears, conveyor belts, and housings.
  • Plumbing and Irrigation: Valves and fittings resistant to scale buildup and thread failure.
  • Medical Devices: Prototyping of in vivo devices due to their machinability and biocompatibility.

Acetal Homopolymer Services at PMC

At PMC, we leverage the unique properties of acetal homopolymer resin to deliver precision and quality across a variety of molding services:

Why Choose PMC for Acetal Plastic Applications?

PMC combines extensive experience with cutting-edge technology to deliver exceptional results with acetal homopolymer resin. Here’s why clients trust us:

  • Material Expertise: We understand the unique properties of acetal and tailor solutions to your project’s needs.
  • Custom Solutions: From design to production, we provide personalized guidance and support.
  • Precision Manufacturing: Our advanced molding techniques ensure consistent, high-quality components.
  • Seamless Support: We assist with every stage of the process, from resin selection to post-molding operations.

Get Expert Support for Acetal Homopolymer Projects

When precision and reliability are critical, acetal homopolymer resin offers unmatched performance. At PMC, we provide the expertise, tools, and processes to bring your project to life with acetal plastic solutions designed for success.

Contact us today to learn more about our capabilities or request a personalized quote to get started.

Acetal Homopolymer Material Data Sheet

These data sheets are examples of the information you should be able to acquire from the material supplier(s) of choice. When specific material(s) are selected then all necessary physical part properties will become the basis for your selection(s).
MaterialAcetal Homopolymer
Chemical Name Acetal (POM) Homopolymer, Acetal polyoxymethhylene homopolymer, Tecaform (Ensinger-Hyde)
StructureCrystaline
OpacityOpaque
StrengthTensile Strength: 6380-9470 psi Yield
Specific Gravity1.40 to 1.43
Shrinkage2.0-3.5%
Melting Point324° F-252° F
Deflection Temperature199 to 320°F
Service Temperature

  • 245°F-342°F unannealed at 66 psi

  • 160°F-320°F unannealed at 264 psi

ApplicationsAcetal Homopolymer is used in high load mechanical applications. This Acetal resin is also used in plumbing and irrigation applications due to its excellent thread strength & ability to resist scale build-up.

Because of its machinability, the Acetal Homopolymer resin is used in prototyping of in vivo medical devices. It is also used in automotive applications.

Specific applications for Acetal Homopolymer resin include:

  • Bearings

  • Gears

  • Safety Restraints

  • Conveyor Belts

  • Housings

  • Automotive Ventilation

  • Fuel System Components

  • Automotive Cooling System Parts

AdvantagesAcetal Homopolymer is a tough, resilient material that exhibits:

  • Good Creep Resistance

  • Rigidity

  • Toughness

  • Dimensional Stability

  • Surface Hardness

  • Lubricity

  • Impact Resistance

  • Low Moisture Absorption

  • Low Friction

  • High Wear Resistance

  • Wide Operating Temperature Range

  • Good Color-ability

  • Good Mating with Metal & Other Polymers

  • Easily Modified Wear & Friction Properties with Additives


Compared to Acetal Copolymer resin, the Homopolymer offers higher tensile strength and impact resistance, as well as good stiffness and creep resistance. These properties allow for thinner and lighter part design, shorter molding cycles and the potential for cost reductions.
DisadvantagesThe disadvantages of Acetal Homopolymer resin include:

  • Longer molding cycle times

  • Sinks

  • Relatively High Cost