As per our Shipping and Returns Policy, custom cuts and fabricated parts are non-returnable. If you need an over- or undersized item, note it under "Comments" during Checkout. Cut-to-size orders have an acceptable cut tolerance of 1/8" (0.125"), so clarify if the adjustment is to be made on the (+) or (-) side of the saw blade.Please review our full return and shipping policy here.
Measure Twice, Cut Once
Since custom cuts and fabricated parts are non-refundable, be very careful while measuring your dimensions. As each cut is nominal, even the slightest miscalculation could be costly.
How to Use a Measuring Tape
Extend your tape measure several inches to find the 1 and 2 inch markers. In between the inch markers you’ll find 16 equally spaced tick marks.
Measure by counting the increments beyond the nearest inch. As the increments decrease, so does the length of the mark. For example, 1/2" has a bigger mark than 1/4" which has a bigger mark than 1/8". The smallest mark follows at 1/16". Please be aware that some measuring tapes may have even smaller increments.
Features of a Measuring Tape: Sliding End Hook
The sliding end hook is designed for two different types of measurements. An outside measurement (where the hook of the tape hangs over an edge), requires the hook to slide out a bit to account for the thickness of the material. When making an inside measurement (where the hook will push up against a surface), the clip slides in, again, accounting for its thickness. The measuring tape self-adjusts to guarantee an accurate measurement (as far as the tape is concerned).
Sanitizing Acrylic and Polycarbonate Sheet [X]
Acrylic and Polycarbonate Sneeze Guards and like products require special care while cleaning and disinfecting. To maintain the optical clarity of sneeze guards and other acrylic or polycarbonate items, use an acrylic or polycarbonate safe cleaner like Novus Plastic Polish #1, Brillianize Plastic Cleaner, or a mild soap solution.
Please reference the following compatible cleaners when DISINFECTING acrylic and polycarbonate items. The use of commonly available commercial alcohol or ammonia-based disinfectants may cause crazing and damage.
Black POM-C: Dimensional Stability for Machined Industrial Parts
When applications demand a combination of dimensional stability, low friction, and improved UV protection compared with natural acetal, Black Acetal (Copolymer POM-C) is an effective engineering material choice. This rigid thermoplastic is formulated to withstand outdoor elements or light-exposed environments better than its natural counterpart, while maintaining the structural integrity required for precision-machined components.
Black acetal is known for its excellent machinability and naturally low coefficient of friction. Because it absorbs very little moisture, it resists swelling and warping in wet conditions. It also withstands a wide range of chemicals, making it suitable for industrial, automotive, and fluid-handling parts that require a durable, dark-colored finish.
Note: Black Acetal's FDA food-contact compliance depends on the specific acetal grade and supplier. Confirm certification requirements before using this material in direct food-contact applications.
Looking for food-contact materials or different mechanical grades? We stock Natural Acetal for applications requiring FDA-compliant formulations, and Homopolymer Acetal (Delrin®) for projects requiring increased stiffness and tensile strength.
Why Choose Black Copolymer Acetal?
This dark-pigmented copolymer is designed to provide reliable performance in diverse mechanical and structural setups. It is a suitable choice if your project requires:
Enhanced UV Resistance:
The black pigmentation helps protect the material from degradation caused by prolonged exposure to ultraviolet light.
Low Moisture Absorption:
Maintains consistent physical properties and tight tolerances even in submerged or high-humidity environments.
Dimensional Stability:
Maintains rigidity and shape under typical mechanical loads, supporting tight tolerances in machined components.
Friction Reduction:
Features a smooth, wear-resistant surface that minimizes the need for external lubrication.
Chemical Resistance:
Offers good resistance to many solvents, hard water, and mild alkaline solutions, while strong acids and strong alkalis should be avoided.
Black Acetal vs. Natural Acetal vs. Nylon
While these are all versatile engineering plastics, their formulations suit different operating requirements.
Choose Black Acetal (This Sheet) if you need the reduced centerline porosity of a copolymer, combined with enhanced UV stability and a black aesthetic. It is ideal for industrial or limited outdoor parts where food-contact certification is not the primary requirement.
Choose Natural Acetal if your application involves food, beverage, or pharmaceutical contact where FDA-compliant material formulations are typically required.
Choose Nylon if you need maximum abrasion resistance and impact absorption for parts like wear pads or heavy-duty rollers, and moisture absorption is not a primary concern.
Black acetal plastic is highly machinable and can be fabricated using standard metalworking and woodworking equipment. It can be easily sawed, drilled, and milled. To achieve precise tolerances and a clean surface finish, it is recommended to use high-speed tooling with minimal vibration.
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.
Handling: Cut sheets may have sharp edges. We recommend wearing protective gloves when unpacking and handling this material to ensure safety.
Suitability: We take pride in the quality of our materials as they leave our facility. However, because every project is unique, we cannot account for how materials are modified, stored, or used after delivery. Please perform the necessary tests to ensure this material is right for your specific application and end-use conditions.
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Technical Performance
Black Acetal is a rigid engineering thermoplastic designed for applications requiring high dimensional stability, low moisture absorption, and excellent fatigue endurance. Its dark pigmentation offers better UV resistance than natural grades, providing consistent performance even in challenging, light-exposed conditions.
While Black Acetal offers excellent machinability and stability, extreme environments and conditions may require different materials:
Strong Acids: Acetal is generally not recommended for environments involving highly concentrated or oxidizing acids. Better Alternative: For extreme chemical or acidic resistance, consider PVC or PTFE (Teflon®).
Sliding Abrasion: While acetal has good wear properties, it may not outlast softer, highly resilient impact plastics in heavy sliding bulk-material scenarios. Better Alternative: For lining chutes and bins requiring maximum sliding abrasion resistance, consider UHMW.
Extreme High Heat: Continuous service above 180°F may reduce mechanical performance and dimensional stability of the material. Better Alternative: For high-heat structural applications, consider PEEK.
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 
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