GEHR PC®
- Chemical Family
- Polycarbonate (PC)
GEHR PC® is a transparent material and belongs to the group of amorphous engineering plastics as well as to the polyester family of plastics. It has a high stiffness and extremely high impact strength. It also has a high glass transition temperature and heat deflection temperature (approx. +130 °C). The continuous operating temperature of PC ranges between approximately -60 °C and +120 °C. The material is highly resistant to high-energy radiation. However, it must be stabilized against UV rays, otherwise yellowing may occur. Like all polyesters, PC is not resistant to hot water (from approx. +60 °C) in the long term.
Properties
- Physical Form
- Custom, Rods, Sheets
- Custom
- Rods
- Sheets
Product families
- Cooling & Climate
- Other Devices & Assemblies
- Medical Devices & Assemblies
- Other Medical Applications
Other characteristics
- Brand
- GEHR PC
- Color
- Transparent
- Density
- 1150.0 - 1250.0 kg/m³
- Features
Amorphous, Chemical Resistant, Dimensional Stability, Excellent Mechanical Strength, Excellent Transparency Properties, Good Impact Strength, High Glass Transition Temperature, High Heat Deflection Temperature, High Stiffness, High Temperature Insulation Properties, High Temperature Resistance, Radiation Resistant
- Polymer Name
- Polycarbonate (PC)
- Odor
- Odorless
- Markets
- Automotive & Transportation
- Electrical & Electronics
- Healthcare & Pharma
- 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
Extremely high impact strength; High mechanical strength; High dimensional stability; High temperature resistance; Good insulating properties; High resistance to radiation; Medium chemical resistance; Notch-sensitive and susceptible to stress crack formation; Hydrolysis-sensitive
- Flame Rating
- UL 94 HB
- Insoluble In
- Water
- Technology
- Plastics
- Safety Measures
The general industrial safety measures should be considered. A thermal damage during machining should be avoided.
- Product Families
- Plastics — Parts, Shapes & Films
- Form and Condition
- Rods. Sheets. Profiles / Solid
- Material Features
- Amorphous
- Chemical Resistant
- Dimensional Stability
- Excellent Mechanical Strength
- Excellent Transparency Properties
- Good Impact Strength
- High Glass Transition Temperature
- High Heat Deflection Temperature
- 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
- Electrical/Electronic Applications
- Medical Devices
- Medical/Healthcare Applications
- Water Jacket Spacer
- Plastics and Elastomers Processing Methods
- Extrusion
Technical data
Table 1 of 6
8 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Tensile Strength at Yield | 75 | MPa | ISO 527 |
| Elongation at Yield (S) | 3 | % | ISO 527 |
| Elongation at Break (R) | 75 | % | ISO 527 |
| Impact Strength (an) | No break | kJ/m2 | ISO 179 |
| Notch impact Strength (ak) | 9 | kJ/m2 | ISO 179 |
| Ball Indentation (Rockwell Hardness) | 100 | MPa | ISO 2039 |
| Hardness | 85 | Shore D | ISO 868 |
| Modulus of elasticity (Et) | 2370 | MPa | ISO 527 |
Table 2 of 6
5 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Specific Gravity | 1.2 | — | ISO 1183 |
| Water Absorption | 0.4 | % | ISO 62 |
| Humidity Absorption | 0.15 | % | ISO 62 |
| Maximum Permissible Service Temperature | 120 | °C | UL746B |
| Lower Permissible Service Temperature | -60 | °C | UL746B |
Table 3 of 6
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Heat Deflection Temperature (HDT/B) | 140 | °C | ISO 75 |
| Heat Deflection Temperature (HDT/A) | 135 | °C | ISO 75 |
| Coefficient of Linear Thermal Expansion | 0.7 | K-1.10-4 | ISO 11359 |
| Thermal Conductivity (20°C) | 0.25 | W/(m.K) | ISO 22007-4 |
| Thermal Conductivity (20°C) | 0.21 | W/(m.K) | ISO 22007-4 |
| Glass Transition Temperature (Tg) | 150 | °C | ISO 3146 |
| Melting Temperature (Tm) | 150 | °C | ISO 3146 |
Table 4 of 6
3 rows| Characteristic | Value | Unit |
|---|---|---|
| Density | 1.15 - 1.25 | g/cm³ |
| Melting Temperature | 150 - 200 | °C |
| Ignition Temperature (ca) | 450 | °C |
Table 5 of 6
5 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Volume Resistivity | min. 10^13 | Ω.cm | IEC 60093 |
| Surface Resistivity (Ro) | min. 10^13 | Ω | IEC 60093 |
| Dielectric Constant (1MHz) | 3 | — | IEC 60250 |
| Dielectric Loss Factor (1 MHz) | 6 | — | IEC 60250 |
| Dielectric Strength | 27 | kV/mm | IEC 60243-1 |
Table 6 of 6
5 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Bondability | Yes | — | — |
| Physiological Indifference (EEC) | Yes | — | — |
| Physiological Indifference (FDA) | Yes | — | — |
| Flammability | HB | — | UL 94 |
| Limiting Oxygen Index (LOI, 9) | 26 | % | ASTM D2863 |
