GEHR POM® C 25GF
GEHR POM® C 25GF has a broad property profile that offers increased strength for many applications compared to non-reinforced GEHR POM-C®. In addition, the reinforcement reduces the coefficient of expansion and simultaneously increases the heat deflection temperature.
Properties
- Physical Form
- Custom, Rods
- Custom
- Rods
Product families
- Equipment & Parts
Other characteristics
- Brand
- GEHR POM
- Density
- 1390.0 - 1390.0 kg/m³
- Features
Chemically Coupled, Dimensional Stability, Electrically Insulating, Good Environmental Stress Crack Resistance (ESCR), Good Sliding Properties, Good Solvent Resistance, Good Thermal Stability, High Heat Deflection Temperature, High Rigidity, High Stiffness, High Strength, Low Water Absorption
- Polymer Name
- Polyacetal Copolymer (POM)
- Reinforcement Material
- Glass Fibers
- Odor
- Odorless
- Markets
- Industrial
- Storage
The products shall be stored indoor to keep away from any source of degradation such as sunlight, UV-jets, ionizing radiation, chemicals.
- Machining
The product can be machined with standard machinery and tools. Before machining the product should be stored at room temperature 24 h. Evacuate swarf to prevent slipping or tripping. Observe the maximum allowable concentration of dust and formaldehyd levels on the working area which apply in your country. Wear safety goggles during machining. General dust limit value: Respirable dust (6 mg/m3); Inhalable dust (10 mg/m3 ).
- Properties
- Pressure tested quality
- High strength and stiffness
- High rigidity (to -40 °C)
- High thermal stability
- Low water absorption
- High dimension stability
- Good electrical insulating properties
- Very good sliding properties
- Flame Rating
- UL 94 HB
- Insoluble In
- Water
- Technology
- Composite Materials
- Plastics
- Safety Measures
The general industrial safety measures should be considered. A thermal damage during machining should be avoided.
- Fillers Included
- Glass Fiber
- Product Families
- Composite Materials — Parts & Shapes
- Plastics — Parts, Shapes & Films
- Form and Condition
- Rods. Sheets. Hollow Rods / Solid
- Material Features
Chemically Coupled; Dimensional Stability; Electrically Insulating; Good Environmental Stress Crack Resistance (ESCR); Good Sliding Properties; Good Solvent Resistance; Good Thermal Stability; High Heat Deflection Temperature; High Rigidity; High Stiffness; High Strength; Low Water Absorption
- Fire-Fighting Measures
Suitable extinguishing agents; Water, foam, dry chemical, carbon dioxide (CO2).; Potential combustion products; Carbon dioxide (CO2), carbon monoxide (CO). Formation of further decomposition and oxidation products depend upon the fire conditions. Under special fire conditions traces of other toxic substances are possible.; Special protective equipment; Wear a self-contained breathing apparatus. If exposed to combustion fumes bring the victim into fresh air.; Further information; Dispose of fire debris and contaminated extinguishing water in accordance with official regulations..
- Certifications and Compliance
- UL 94
- Plastics and Elastomers End Uses
- Machine/Mechanical Parts
- Plastics and Elastomers Processing Methods
- Extrusion
Technical data
Table 1 of 6
6 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Tensile Strength at Break | 130 | MPa | ISO 527 |
| Elongation at Break (R) | 3 | % | ISO 527 |
| Impact Strength (an) | 55 | kJ/m2 | ISO 179 |
| Notch impact Strength (ak) | 9 | kJ/m2 | ISO 179 |
| Ball Indentation (Rockwell Hardness) | H 190 | MPa | ISO 2039 |
| Modulus of elasticity (Et) | 8800 | MPa | ISO 527 |
Table 2 of 6
5 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Specific Gravity | 1.58 | — | ISO 1183 |
| Water Absorption | 0.9 | % | ISO 62 |
| Humidity Absorption | 0.15 | % | ISO 62 |
| Maximum Permissible Service Temperature | 110 | °C | UL746B |
| Lower Permissible Service Temperature | -40 | °C | UL746B |
Table 3 of 6
4 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Vicat Softening Point (VST/B/50) | 160 | °C | ISO 306 |
| Heat Deflection Temperature (HDT/A) | 163 | °C | ISO 75 |
| Coefficient of Linear Thermal Expansion | 0.4 | K-1.10-4 | ISO 11359 |
| Melting Temperature (Tm) | 168 | °C | ISO 3146 |
Table 4 of 6
4 rows| Characteristic | Value | Unit |
|---|---|---|
| Density | 1.39 | g/cm³ |
| Melting Temperature | 160 - 175 | °C |
| Thermal Decomposition | min. 240 | °C |
| Ignition Temperature | 320 - 340 | °C |
Table 5 of 6
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Volume Resistivity | min. 10^12 | Ω.cm | IEC 60093 |
| Surface Resistivity (Ro) | min. 10^13 | Ω | IEC 60093 |
| Dielectric Constant (1MHz) | 3.2 | — | IEC 60250 |
| Dielectric Constant (1MHz) | 4 | — | IEC 60250 |
| Dielectric Loss Factor (1 MHz) | 7 | — | IEC 60250 |
| Dielectric Strength | 43 | kV/mm | IEC 60243-1 |
| Tracking Resistance | CTI 600 | V | IEC 60112 |
Table 6 of 6
1 row| Characteristic | Value | Method |
|---|---|---|
| Flammability | HB | UL 94 |
