Description
Flat bar in black POM-C acetal resin, already cut to width and length: machine it directly into guides, slide pads and flat parts. It is the material of choice when the size of the part must not change: it absorbs about 0.2 % moisture against 2-3 % for polyamides, and it is rigid, slides well and is stable.
- Thicknessesfrom 6 to 40 mm
- Widthsfrom 20 to 150 mm
- Lengths1000 mm / 2000 mm
- Operating temperature*-40 / +100 °C (peaks up to +140 °C)
- Density*1.41 g/cm³
The material
POM-C machines with an excellent finish, holds tight tolerances even in damp environments and has a low coefficient of friction. Compared with nylon it is more rigid but less tough: under a sharp blow it tends to break rather than deform.
Typical applications
Operating conditions
| Service temperature* | -40 / +100 °C continuous (peaks up to +140 °C) |
|---|---|
| Resists | Fuels, solvents, oils, weak alkalis. Excellent dimensional stability even in damp environments |
| Avoid | Strong acids, oxidisers, prolonged UV exposure without stabilisation |
| Water absorption* | 0.2 % — practically negligible |
| Hardness* | 80 Shore D / 150 MPa (ball indentation hardness) |
| Tensile strength* | ≥ 65 MPa |
| Density* | 1.41 g/cm³ |
| Food contact | No: for food contact choose natural POM-C |
Advantages
- Excellent dimensional stability, negligible water absorption
- High rigidity, ideal for precision components
- Excellent machinability, clean finished surface
- The black colour hides dirt and signs of wear
Limitations
- Less tough than PA6 under impact
- Not resistant to strong acids
- Sensitive to UV unless stabilised
Available sizes
Thicknesses from 6 to 40 mm, widths from 20 to 150 mm, lengths 1000 mm or 2000 mm: choose the combination from the menus above and the price updates automatically.
Technician's tipIt is the benchmark choice for parts that must stay accurate: tight tolerances, damp environments, dimensions that must not shift. If, on the other hand, the component takes knocks, PA6 copes better.
* Typical values from technical literature for this material, indicative and not measured on the individual batch: for critical uses ask us for the manufacturer's data sheet. The full technical data sheet for the material, in Italian, can be downloaded with the "Datasheet" button at the top.
