A POM Sheet, or Polyoxymethylene Sheet, is an engineering thermoplastic known for its exceptional dimensional stability, high stiffness, low friction, and excellent resistance to wear and chemicals. Often referred to by its common brand name, acetal, this material is a premier choice for precision parts requiring tight tolerances and reliable performance in demanding mechanical and chemical environments. At Kaxite Sealing, we specialize in manufacturing high-performance POM sheets that meet the rigorous standards of industries worldwide.
Our POM sheets are engineered for superior performance. Here are the core benefits:
Our product range is characterized by precise, consistent properties. Below are the detailed parameters.
| Property | Test Standard | Value (Homopolymer) | Value (Copolymer) | Unit |
|---|---|---|---|---|
| Density | ISO 1183 | 1.42 | 1.41 | g/cm³ |
| Tensile Strength (Yield) | ISO 527 | 70 | 65 | MPa |
| Flexural Modulus | ISO 178 | 3200 | 2800 | MPa |
| Impact Strength, Notched (23°C) | ISO 179/1eA | 7.5 | 6.5 | kJ/m² |
| Coefficient of Friction (Dynamic) | ASTM D1894 | 0.1 - 0.3 | 0.15 - 0.35 | - |
| Continuous Service Temperature | - | -40 to +90 | -40 to +100 | °C |
| Water Absorption (24h immersion) | ISO 62 | 0.20 | 0.22 | % |
| Sheet Thickness | Standard Sheet Size (Width x Length) | Available Colors |
|---|---|---|
| 1 mm - 3 mm | 620 mm x 1240 mm | Natural (White/Opaque), Black |
| 4 mm - 15 mm | 620 mm x 1240 mm / 1000 mm x 2000 mm | Natural (White/Opaque), Black |
| 16 mm - 50 mm | 620 mm x 1240 mm | Natural (White/Opaque), Black |
| Rods (Diameter) | 5 mm - 200 mm (Lengths up to 1000 mm) | Natural (White/Opaque), Black |
Custom sizes, thicknesses, and fabricated parts are available upon request. Contact Kaxite Sealing for specialized solutions.
Due to its unique combination of properties, POM is indispensable across multiple sectors.
What is the main difference between POM Homopolymer and Copolymer?
POM Homopolymer offers slightly higher mechanical strength, stiffness, and a lower coefficient of friction. POM Copolymer provides better thermal stability, improved resistance to hot water and alkaline environments, and is generally easier to process. Kaxite Sealing can advise on the best type for your specific application.
Can POM sheets be used outdoors?
While POM has good resistance to many environmental factors, prolonged exposure to strong UV radiation can lead to surface degradation and embrittlement. For outdoor applications, we recommend using stabilized (UV-resistant) grades or considering alternative materials like specific polyethylenes. Consult with our engineers for long-term outdoor use cases.
How does POM compare to Nylon (PA) or PTFE (Teflon)?
POM is stiffer and has better dimensional stability than Nylon, which absorbs more moisture. POM is also more mechanically robust and easier to machine than pure PTFE, though PTFE has a lower friction coefficient and higher temperature resistance. Each material serves different optimal use cases; POM excels as a rigid, low-wear bearing and gear material.
What are the best practices for machining Kaxite Sealing POM sheets?
Use sharp, positive-rake tools (carbide or high-speed steel) to achieve a clean cut. Ensure adequate cooling with compressed air; water-based coolants can be used but are often unnecessary. Maintain moderate feed rates and high cutting speeds to prevent material melting. Proper fixturing is essential to avoid vibration and chattering.
Can POM sheets be bonded or welded?
Yes. Solvent welding (using specific solvents) and thermal welding (hot plate, hot gas, or ultrasonic welding) are common and effective methods for joining POM components. For bonding, surface activation (e.g., flame treatment) is often required before using specialized cyanoacrylate or two-component epoxy adhesives. Kaxite Sealing provides technical data sheets with recommended joining techniques.
Is post-processing or painting POM possible?
Painting POM can be challenging due to its low surface energy. Successful painting requires a thorough surface preparation process, including degreasing and priming with an adhesion promoter specifically designed for polyolefins and acetal. For consistent colors, we recommend using our pre-colored black or custom-compounded sheets.
What chemicals should POM sheets avoid?
POM has poor resistance to strong mineral acids (e.g., sulfuric, nitric), strong bases (concentrated caustics), and chlorine/oxidizing agents. It is also not recommended for continuous use in hot water above 60-70°C under stress. It performs very well with most fuels, oils, greases, and organic solvents.
What are the temperature limits for POM?
The continuous service temperature for POM typically ranges from -40°C to +90°C for homopolymer and up to +100°C for copolymer. Short-term peak exposure can be higher (up to 120-140°C), but this will reduce the material's lifespan and load-bearing capacity. Always consider the applied stress when evaluating temperature limits.
Why choose Kaxite Sealing for POM sheets over other suppliers?
Kaxite Sealing provides more than just raw material. We offer:
Black actel sheet with high surface hardness and surface density. Small abrasion consumption, impact fatigue and shock resistance, small coefficient friction, and self-lubricating, therefore, it is the first material choice for manufacturing gear. Available Products: POM Sheet, Pom Delrin Sheet, Pom Rod Sheet, Delrin Plastic Sheet, Pom Acetal Plate, Pom Plastic Sheet
High Quality White Plastic White Black Pom Delrin Sheet, Derlin(Full-name: Polyformaldehyde), is a engineering plastics of non-side-chain, high density, high crystalline and linear polymer, which is praised [Plastic Steel", and has comprehensive excellent performances, such as: wear-resistance, high hardness, anti-impregnant, good rigidity (Tensile modulus of elasticity), chemical stability, isolation resistance and dimensional stability. Available Products: POM Sheet, POM Delrin Sheet, Pom Rod Sheet, Delrin Plastic Sheet, Pom Acetal Plate, Pom Plastic Sheet
POM formal name is polyacetal or delrin. delrin pom panel ,POM has excellent physical performances: high hardness, good wear resistance and fatigue resistance, good chemical stability and electricity insulation, dimensional stability, especially excellent solvent rigidity (elastic modules) and mechanical strength. It can act as lubricated parts, decorated parts, precision instruments, bearings gears, pumps, and insulated shells replacing of bronze, copper alloy, zinc, aluminum, steel and other metals. Available Products: POM Sheet, Pom Delrin Sheet, Pom Rod Sheet, Delrin Plastic Sheet, Pom Acetal Plate, Pom Plastic Sheet
Discount of 20mm Thick Acetal Sheet, Acetal POM-C Acetal Sheets, Acetal Platic Sheets are in hot selling! POM is a kind of dystectic, high crystallinity thermoplastic engineering plastic material, its mechanical property is very close to metal material, can be used in 100°C normally. POM Sheet can be applied to making components and parts of mechanical equipment, such as wheel gear, bearing, pump case, which is widely employed in the field of auto industry, electronics, medical devices, packing services, food machinery. There are POM-C and POM-H in the market, and POM-C has the most market share, because it is easy to compound and machine, so our company standard material is POM Copolymer Sheet and Rod. Available Products: Pom Sheet, Pom Delrin Sheet, Pom Rod Sheet, Delrin Plastic Sheet, Pom Acetal Plate, Pom Plastic Sheet
Colorful POM Polyacetal Plastic Flat Sheet is a kind of dystectic, high crystallinity thermoplastic engineering plastic material, Polyacetal Plastic Sheets' mechanical property is very close to metal material, can be used in 100°C normally. POM Sheet can be applied to making components and parts of mechanical equipment, such as wheel gear, bearing, pump case, which is widely employed in the field of auto industry, electronics, medical devices, packing services, food machinery. There are POM-C and POM-H in the market, and POM-C has the most market share, because it is easy to compound and machine, so our company standard material is POM Copolymer Sheet and Rod.
