Acetron® is a general purpose copolymer acetal and is the only porosity-free acetal product available today. Investments in process technology now provide the performance and machinability of acetal without center core porosity. The in-line photometric quality procedure assures every sheet and rod is porosity-free as measured by the dye penetrant test making it the preferred acetal for food contact and medical applications. Acetron GP ® natural is FDA, USDA, NSF, Canada AG, and 3A-Dairy compliant.
Acetal provides high strength and stiffness coupled with enhanced dimensional stability and ease of machining. As a semi-crystalline material, acetal is also characterized by a low coefficient of friction and good wear properties — especially in wet environments.
Because acetal absorbs minimal amounts of moisture, its physical properties remain constant in a variety of environments. Low moisture absorption results in excellent dimensional stability for close-tolerance machined parts. In high moisture or submerged applications, acetal bearings outperform nylon 4 to 1. Acetal is ideally suited for close tolerance mechanical parts and electrical insulators which require strength and stiffness. It also offers resistance to a wide range of chemicals including many solvents.
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Generic Name
Polyoxymethylene
Available In
Sheet, Rod, Tube, Film
Certifications
ITAR Registered
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| Type | Size | Length | Color |
|---|---|---|---|
| Sheet | 060 – 6” | 24” x 48’, 12” x 48”, 48” x 96” | Natural & Black |
| Rod | 1/8” – 12” | 96”, 120” | Natural & Black |
| Tube | ½” – 4” ID | 120” | Natural |
| Film | .010 – .060 | Natural & Black |
Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.
| Physical Properties | Units | ASTM | Results |
|---|---|---|---|
| Density | lb/in³ | D792 | 0.05 |
| Water Absorption, 24 hrs | & | D570 | 0.2 |
| Mechanical Properties | Units | ASTM | Results |
|---|---|---|---|
| Tensile Strength @ yield | psi | D638 | 10 |
| Tensile Modulus | psi | D638 | 9500 |
| Tensile Elongation @Break | % | D638 | 30 |
| Flexural Strength | psi | D790 | 12 |
| Flexural Modulus | psi | D790 | 400 |
| Compressive Strength | psi | D695 | 15000 |
| Compressive Modulus | psi | D695 | 400 |
| Hardness, Rockwell R | D785 | 120 | |
| IZOD Impact Strength Notched | ft-lb/in | D256 | 1 |
| Thermal Properties | Units | ASTM | Results |
|---|---|---|---|
| Coeffcient of Linear Thermal Expansion | (x 10^-5 in./in./°F) | 5.4 | |
| Heat Deflection Temp at 264 psi | °F | 220 | |
| Melting Temperature | °F | 335 | |
| Max Operating Temp. | °F | 180 | |
| Thermal Conductivity | BTU-in/ft²-hr-°F | .6 | |
| Flammability Rating | HB |
| Electrical Properties | Units | ASTM | Results |
|---|---|---|---|
| Dielectric Strength. 1/8″ th. | V/mil | D149 | 420 |
| Dielectric Constant @1 MHz | 3.8 | ||
| Dissipation Factor@1 MHz | D150 | 3.8 | |
| Volume Resistivity, 50% RH | ohm-cm | D257 | 1015 |
