POM is one of the strongest plastics available. Tough, impact-resistant, and with good sliding properties.

POM, or Polyacetal, is a hard thermoplastic for technical applications. You'll find POM in high-performance mechanical parts (gears, skis, plastic nuts and bolts, locks, etc.). It is widely used in the automotive industry and consumer products.

Properties

• Good chemical resistance
• High dimensional stability
• Low moisture absorption

POM has a hard surface (Shore °D 81) and a wide temperature range (-50 … 100°C). It is so strong and tough that it is comparable to epoxy and polycarbonate, with the advantage that POM can be laser cut.

POM has a low coefficient of friction of 0.36. The static and dynamic coefficients of friction are equal, preventing stick-slip. POM is also wear-resistant, and due to both properties, it is very suitable for sliding or moving parts. Polyacetal is also a good insulator with a dielectric strength of 50kV/mm.

Production

Polyacetal is formed by injection molding or extrusion. The sheets we laser cut are extruded. Please note; sheets can vary in thickness. The thickness tolerance for a chosen sheet thickness is indicated in the table. 

Our sheets are available in black or natural. The natural variant is somewhat translucent.

Processing POM

POM can barely be glued or painted. The surface is somewhat waxy, and there are almost no adhesives that bond well. Various adhesive foils, however, bond well.

Edge Quality of Laser Cut POM

The laser cut in POM is clean and does not discolour. For thicker sheets (>6 mm), a small melt edge may occur on the underside of the sheet. This can be removed with a deburring tool or by sanding. The top side of the cut is clean and sharp.

If you prefer not to do any post-processing, you can also choose protective film for the underside during ordering. You will then receive the parts with film, and after removal, the melt edge will also be gone as it remains on the film. 

Applications of POM/Polyacetal

Gears, plain bearings, housing parts, compliant mechanisms, rings, seals, Insulators, mounting plates, picks, keyboards, etc.