Acetal Copolymer Natural White Sheet

Description

Reliable Engineering Thermoplastic for High-Moisture Environments

When traditional metal parts fail due to weight, corrosion, or friction, Acetal (Copolymer POM-C) is a proven engineering material alternative. This high-strength, low-friction thermoplastic performs well in high-moisture environments, delivering the necessary dimensional stability for precision-machined components that must resist warping, swelling, and binding.

Beyond its competitive price point, acetal provides excellent wear resistance and a naturally low coefficient of friction in both dry and wet environments. It machines exceptionally well and resists continuous moisture and a variety of chemicals and solvents, making it a strong choice for many demanding fluid-handling applications.

Looking for different grades or colors? We also offer Black Acetal for improved UV resistance compared to natural acetal and Homopolymer Acetal (Delrin®) for increased mechanical strength to meet specific application requirements.

Why Choose Copolymer Acetal?

Acetal plastic provides reliable performance across diverse mechanical and structural applications. It is the correct choice if your project requires:

Low Moisture Absorption:: Absorbs minimal moisture, ensuring consistent properties and dimensional stability in wet environments with reliable hydrolysis resistance in hot water applications up to 140°F.
High Strength & Stiffness:: Maintains toughness, resilience, and rigidity without becoming brittle, even over long-term exposure to demanding conditions.
Excellent Machinability:: Readily machines to close tolerances using standard high-speed tooling.
Low Friction & Wear:: A smooth, non-porous surface that reduces the need for external lubrication in sliding parts.
Chemical Resilience:: Demonstrates notable resistance to a variety of solvents, basic (high pH) solutions, and hard water.

Copolymer Acetal vs. Delrin® (Homopolymer) vs. Nylon: Which Do You Need?

While all three are engineering plastics, they excel in different operating environments.

Choose Copolymer Acetal (This Sheet) to minimize centerline porosity. The absence of a porous core makes copolymer acetal a popular material choice for food processing and medical applications where hygiene and bacteria growth are concerns. It handles high pH solutions and prolonged hot water exposure better than homopolymer grades.
Choose Delrin® (Homopolymer Acetal) if high room-temperature stiffness, tensile strength, and impact resistance are your primary priorities.
Choose Nylon if you need a tough, abrasion-resistant material for bearings, wear pads, rollers, or parts exposed to repeated impact when moisture absorption is not a concern.

Read Acetal (POM) vs. Nylon (PA) Guide ›

Fabrication & Machining

Acetal plastic is a fabrication-friendly material and can be machined using standard woodworking and metalworking tools. It can be readily drilled, cut, and routed. Any machining tool capable of high speed with minimal vibration can be used to achieve tight tolerances and a smooth surface finish.

Watch: What is Extruded Acetal?

Acetal & Delrin Ideal for Precision Close-Tolerance Industrial and Mechanical Components

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Material: ACETAL / DELRIN^® UNFILLED
Water Absorption: 0.8% @ Saturation
Density: 0.05 lbs/in³
Friction Coefficient: .21 lbs/in.²
Tensile Strength: 8800 psi
Tensile Modulus: 330 ksi
Flexural Modulus: 400 ksi
Flexural Strength: 13000 psi
Elongation: 25% @ Break
Izod Impact Strength: 1 ft-lb/in.
Hardness: M86
Compressive Strength: 12000 psi
Compressive Modulus: 250 ksi
Continuous Operating Temp: 195°F
Heat Deflection Temp: 316°F @ 66 psi
Melting Point: 329°F
Linear Expansion Coefficient: 4.7 x 10^-5 in./in./°F
Compliance: FDA
Dielectric Constant: 3.7
Dissipation Factor: .001

Frequently Asked Questions

What is Interstate Advanced Materials's Shipping Policy?
Shipping will vary based on whether your order contains custom or cut-to-size products. Details about shipping can be found here.

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WARNING: This product can expose you to chemicals including Formaldehyde, CAS 50-00-0, which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

WARNING: This product can expose you to chemicals including Hexachlorobenzene, CAS 118-74-1, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Disclaimer: Interstate Advanced Materials makes no representations about any of its products that are modified in any way after they leave its possession, nor do its representations apply when any of its products are improperly used or stored. Each customer of Interstate Advanced Materials bears full responsibility for making its own determination as to the suitability of each material, product, recommendation or advice provided by Interstate Advanced Materials. Each customer of Interstate Advanced Materials must identify and perform all tests and analyses necessary to assure that its finished parts incorporating materials from Interstate Advanced Materials will be safe and suitable for use under end-use conditions.

Acetal Copolymer Natural White Sheet

Copolymer Acetal (POM-C) | Cut-to-Size & Full Sheet | Precision Machinable & Moisture Resistant

Select your custom cut sizes:

Price for 0.030" X 12.000" X 12.000" Qty: 1