Also known as
Also known asErtacetal
Basic Properties
High strength, good wear properties and a porosity-free product. Has excellent machinability properties and has good creep resistance.
Common Uses
Acetal is a very hard and stiff plastic with extremely good mechanical characteristics.
Having excellent creep resistance and dimensional stability it is ideally suited to precision gears, bearings, snap fit assemblies and due to its low water absorption, is used for parts that operate under water between 60 and 90 degrees celsius.
It has excellent dielectric properties and is also used in electrical insulators. Acetal is more rigid than Nylon although it has a low melting temperature and has a low impact strength.
Its chemical resistance is good but not as good as Teflon.
Properties
| Acetal Ertacetal C Physical Properties | |
|---|---|
| Specific Gravity Units g/cm3 | 1.41 |
| Continuous Operating Temperature Unit °C – 5,000Hrs / 20,000Hrs | 115/110 |
| Tensile Strength Units MPa | 68 |
| Impact Resistance Units Charpy KJ/m2 | >150 |
| Impact Resistance Units Izod KJ/m2 | 7 |
| Hardness Units Rockwell M | 84 |
| Co-efficient of Thermal Expansion Units mm/(mmxK) x 10-6 avg value 23-60°C | 110 |
| Dielectric Strength Units KV/mm | 20 |
| Surface Resistivity Units Ohms | >1×1013 |
| Flammability Oxygen Index % | 15 |
| Flammability UL94 | HB |
| FDA Approved | Yes (Natural) |
Available Products
Machined Acetal Parts
Acetal Rod
Outside diameter: 6 to 150mm
Acetal Tube
Outside diameter: 20 to 250mm
Acetal Sheet
Thickness: 1 to 50mm
Sizes: 1000 x 610mm / 2000 x 1000mm / 3000 x 610m
Acetal Tape Rolls
Thickness: 0.5 to 0.8mm
