Acetal (POM)
Key Features
- Excellent machining properties
- Suitable for direct contact with food
- Low moisture absorption
- High strength, rigidity and toughness
- Good impact strength including at low temperatures
- Good creep resistance
- Good resistance to hydrolysis
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Key Features
- Excellent machining properties
- Suitable for direct contact with food
- Low moisture absorption
- High strength, rigidity and toughness
- Good impact strength including at low temperatures
- Good creep resistance
- Good resistance to hydrolysis
Overview
Kormax Acetal [technical name Polyoxymethylene] generally comes in either natural white or black colour. Material has low moisture absorption [stable in humid environments], excellent machinability and its FDA compliance allows for direct contact with food stuffs. The black has improved UV resistance and is the preferred choice for outdoor / applications in direct sunlight. It has good dimensional stability but should not be used in temperatures operating above 80ºC.
Material Profile
Metric
Imperial
| Profile | Size Range | Availability | |
| Sheet | 4″ see full size range | In Stock | |
| Rod | 9.84" see full size range | In Stock | |
Physical Properties
Metric
Imperial
| Material | Unit | Acetal |
| Tensile Strength at Break | psi | 9400 |
| Yield Strength | psi | 9700 |
| Elongation at Yield | % | 22% |
| Hardness | MPA | 125 |
Machining Allowances
| Size | Tolerances | |
| Rod | ||
| 5mm – 25mm | >0.1mm – 1.1mm | |
| 26mm – 56mm | >0.2mm – 1.3mm | |
| 60mm – 100mm | >0.4mm – 2.2mm | |
| 110mm – 150mm | >0.5mm – 4mm | |
| 160mm + | >1.0mm – 6mm | |
| Sheet | ||
| 1mm – 10mm | < 0.2mm – > 1.0mm | |
| 12mm – 25mm | >0.3mm – 1.5mm | |
| 30mm – 50mm | >0.5mm – 2.5mm | |
| 60mm – 100mm | >0.1mm – 3.5mm |