Acetal Sheet, Rod, and Tube | Piedmont Plastics

Common Properties

Common Brand Names Delrin®, TECAFORM®, ACETRON®, SUSTARIN®
Typical Thickness Size 0.125, 0.25, 0.5, 1, 2 in
Typical Lengths 48, 96 in
Typical Widths 24, 48 in
Friendly Names POM, Polyoxymethylene, Polyacetal
Common Profiles Sheets, Rods, Tubes

Physical Properties

Density 0.90 - 2.20g/cm³
Water Absorption 0.01 - 1.50%
Moisture Absorption at Equilibrium 0.10 - 2.50%
Linear Mold Shrinkage 0.002 - 0.020in/in
Melt Flow 0.10 - 120g/10 min

Electrical Properties

Dielectric Strength 500V/mil
Dielectric Constant 3.7none
Dissipation Factor 0.002none
Volume Resistivity 1.0e14ohm-cm
Surface Resistivity 1.0e15ohm
Arc Resistance 120seconds
Comparative Tracking Index (CTI) 600V
Thermal Coefficient of Dielectric Constant 200ppm/°C
Electrostatic Discharge (ESD) Sensitivity Insensitivenone
Breakdown Voltage 15kV

Mechanical Properties

Hardness, Rockwell R 120scale
Tensile Strength, Ultimate 69MPa
Tensile Strength, Yield 63MPa
Elongation at Break 30%
Elongation at Yield 10%
Modulus of Elasticity 2800MPa
Flexural Yield Strength 96MPa
Flexural Modulus 2700MPa
Compressive Yield Strength 78MPa
Bearing Yield Strength 118MPa
Shear Strength 80MPa
Izod Impact, Notched 1.2kJ/m2
Izod Impact, Unnotched 5.4kJ/m2
Gardner Impact 200J
Falling Dart Impact 100J
Instrumented Impact Total Energy 15J

Thermal Properties

CTE, linear 90 - 110µm/m°C
CTE, linear, Transverse to Flow 90 - 105µm/m°C
Deflection Temperature at 0.46 MPa (66 psi) 100 - 140°C
Deflection Temperature at 1.8 MPa (264 psi) 80 - 125°C
Vicat Softening Point 150 - 165°C
Flammability, UL94 V - 0 to HB
Max Continuous Operating Temperature in F 180 - 200°F
Minimum Operating Temperature in F - 40°F
Thermal Conductivity 0.3W/m·K

Regulations

UL-94 Flame Class
FDA
ASTM/Mil-Spec
NSF
USP Class VI
FAR 25.853 Flammability
D635 Self Extinguishing
RoHS Compliant
REACH Compliant

Acetal Plastic Sheet, Rod, and Tube Solutions at Piedmont Plastics

Acetal, also known as Polyoxymethylene or POM, is a high-performance engineered plastic known for its excellent strength, stiffness, and durability. As a semi-crystalline material, acetal offers easy machinability, making it a top choice for creating complex parts that need tight tolerances. Its versatility, low friction, and good wear resistance also make it ideal for parts that move or slide against other surfaces. Whether you need strong components for industrial equipment or precision parts for manufacturing, acetal plastic delivers reliable performance in demanding environments.

At Piedmont Plastics, we offer a wide selection of acetal plastic sheet, rod, and tube to meet your project needs. Our acetal products are perfect for applications like gears, bearings, bushings, conveyor parts, and fittings. Thanks to its strength and stability, acetal is commonly used in industries such as automotive, food processing, medical equipment, and electronics.

As a trusted plastic sheet, rod, tube, and film distributor, Piedmont Plastics has the materials and expertise to help you find the right solution. Our industrial market experts are ready to assist you in selecting the best acetal products for your specific applications.

Ready to get started? Shop for acetal plastic sheet, rod, and tube today at Piedmont Plastics and experience the difference that high-quality performance plastics can make for your project!

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Key Features of Acetal

Acetal has many qualities that make it a terrific choice for your application, including:

High Strength: Acetal is a low friction plastic that offers a thinner, lighter, and more flexible design than leading market products.
Ease of Manufacturing: Designed to replace metals, acetal is easily fabricated for a variety of industrial and commercial applications.
Versatility: With its combination of stiffness, strength, durability, and lubricity, acetal is one of the most widely used thermoplastics for manufacturing.
Low Coefficient of Friction: Its excellent wear properties and low moisture absorption allow it to be used in many industrial applications, especially those in overly wet or dry environments.
Chemical Resistance: Acetal is chemically resistant to solvents and even offers good electrical properties. Acetal also has a continuous use temperature range of up to 180° F (82° C).

Acetal is available in homopolymer (POM-H) and copolymer (POM-C) options. Commonly referred to by its brand name Delrin®, homopolymer acetal offers greater room temperature strength, stiffness, and toughness, whereas copolymer acetal performs extremely well in continuous high heat and hot water environments.

Benefits of Using Acetal

Renowned for its wear resistance, low moisture absorption, and customizability, acetal is also FDA compliant, making it suitable for food processing applications. Contact our expert team to learn more about the benefits and uses of acetal!

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Applications of Acetal Sheet, Rod, and Tube

Acetal is a versatile material that is useful in a variety of industries. Common applications include:

Bearings and Bushings: Acetal's low friction and wear resistance make it well-suited for these industrial components.
Seals and Gaskets: Durable and tough, acetal is widely used in seals and gaskets, offering excellent resistance to high compressive loads as well as protection against most chemicals and solvents.
Conveyor Systems: Easily machined and available in a wide range of grades, acetal offers natural lubricity and a low coefficient of friction for smooth, quiet operation.
Automotive Parts: Acetal is used in engine manifolds and vehicle tanks because of its durability and heat resistance.
Food Processing Equipment: Thanks to its FDA compliance and moisture resistance, acetal is a preferred material for food applications.

Frequently Asked Questions About Acetal

Acetal is a popular engineering material known for its strength, stability, and versatility. Below are some of the most frequently asked questions about acetal to help you better understand its properties, uses, and advantages.

Acetal (POM) is a high-strength engineering thermoplastic renowned for its stiffness, low friction, and excellent dimensional stability. It's widely used in precision parts requiring tight tolerances and durability.

There are two primary types of acetal. The first is homopolymer acetal (e.g., Delrin®), which offers slightly higher mechanical strength and stiffness but may exhibit centerline porosity. The second is copolymer acetal, which provides improved chemical resistance and reduced porosity, making it suitable for applications involving moisture or chemicals.

Yes, acetal is known for its excellent machinability. It can be easily cut, drilled, and milled to precise dimensions, making it ideal for custom parts requiring tight tolerances. Piedmont Plastics can cut acetal to size and assist with fabrication upon request.

Acetal has better dimensional stability and machinability than UHMW, and absorbs less moisture than nylon, making it more stable in humid environments.

Yes, many grades of acetal plastic are FDA-compliant and suitable for direct food contact in processing and packaging equipment.

Delrin® is a brand name for homopolymer acetal, while generic acetal may refer to either homopolymer or copolymer types from other manufacturers.

Why Buy Acetal from Piedmont Plastics?

Piedmont Plastics is the go-to source for acetal and other performance plastic materials. Backed by the expertise of our industrial market team, we are fully equipped to provide tailored solutions for your mechanical applications.

Learn more about why you should choose Piedmont Plastics as your acetal supplier:

Extensive Product Range: Our large inventory features a wide selection of acetal sheet, rod, and tube, available in a variety of dimensions, thicknesses, diameters, and colors to meet the demands of your application.
Custom Cutting and Fabrication: We can easily fabricate acetal to meet your exact specifications using our cut-to-size services.
Trusted Expertise: With years of hands-on industry experience, our knowledgeable team is ready to help you select the acetal materials for your specific needs.
Nationwide Availability: Thanks to our expansive network of locations across North America, our performance plastics are always close at hand to support your projects.
Superior Quality: Dedicated to delivering excellence, we ensure our acetal products consistently meet or exceed the highest industry standards for performance and reliability.