POM is a high crystalline polymer with high elastic modulus, excellent hardness, and stiffness. It can be used over a long period at temperatures ranging from -40 to 100°C. It also withstands multiple impacts without significant strength variation, and its strength is minimally affected by temperature and temperature changes. One of POM's good electrical properties is that its dielectric constant is not affected by temperature and humidity. The slight differences in trace impurities due to different manufacturing processes can have an order of magnitude effect on volume resistance. POM's drawbacks include its relatively high density, opacity, resistance to acids, high shrinkage during molding, not very high melting point, and rapid thermal degradation at high temperatures. Thermal oxidation degradation also occurs in the presence of oxygen.Suitable for manufacturing handles for electric wrenches, switch handles, as well as parts for telephones, radios, tape recorders, video recorders, televisions, computers, and fax machines. Additionally, it can be used for timer components and tape player mounts.
| Physical Properties | Rated Value | Unit System | Testing Method |
Density | 1.41 | g/cm³ | ISO 1183 |
Melt Flow Rate (190°C/2.16 kg) | 27 | g/10 min | ISO 1133 |
Solids Volume Flow Rate (MVR) (190°C/2.16 kg) | 23.0 | cm³/10min | ISO 1133 |
Shrinkage - Flow Rate (3.00 mm) | 2.0 | % | |
Absorption rate 3 (Balance, 23°C, 50% RH) | 0.22 | % | ISO 62 |
| Mechanical Properties | Rated value | Unit system | Testing Method |
Tensile Modulus | 2900 | MPa | ISO 527-2 |
Tensile Stress Submit | 64.0 | MPa | ISO 527-2 |
Tensile strain Submitting | 7.5 | % | ISO 527-2 |
Breakage rate | 25 | % | ISO 527-2 |
Bending Modulus | 2700 | MPa | ISO 178 |
Bend Strength | 91.0 | MPa | ISO 178 |
| Impact resistance | Rated Value | Unit system | Testing Method |
Simply Supported Beam Notch Impact Strength (23°C) | 6.0 | kJ/m² | ISO 179 |
Simply supported beam notch impact strength (23°C) | 150 | kJ/m² | ISO 179 |
| Thermal performance | Rated Value | Unit system | Testing Method |
Hot Deformation Temperature | |||
0.45 MPa, as-annealed | 156 | °C | ISO 75-2/B |
1.8 MPa, annealed | 100 | °C | ISO 75-2/A |
Melting Point | 166 | °C | ISO 11357-3 |
Linear Coefficient of Thermal Expansion | ISO 11359-2 | ||
Flowing | 0.00011 | cm/cm/°C | |
Horizontal | 0.00011 | cm/cm/°C |











































