| About |
|---|
| Makrolon® GP sheet is a polished surface, UV stabilized, transparent polycarbonate product. It features outstanding impact strength, superior dimensional stability, high temperature resistance, and high clarity. This lightweight thermoformable sheet is also easy to fabricate and decorate. Makrolon GP sheet is offered with a five (5) year Limited Product Warranty against breakage. The terms of the warranty are available upon request. Applications Industrial glazing, machine guards, structural parts, thermoformed and fabricated components&& |
| Product Description | |
|---|---|
| Supplier | Covestro |
| Generic | Polycarbonate |
| Material Status | Commercial: Active |
| Features | Weather resistance is good,Good Clarity,High impact resistance,Good Dimensional Stability,High Heat Resistance,HB,V-0 |
| Availabilitys | North America,Latin America |
| Process Methods | Thermo forming |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.20 | g/cm³ | ASTM D792 |
| Water absorption rate | |||
| 24hr | 0.15 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 3.2mm | 960 | J/m | ASTM D256 |
| Notched impact strength of cantilever beam | |||
| 3.2 mm | 无断裂 | ASTM D256 | |
| Dart impact equipped with measuring instruments | |||
| 3.18 mm | > 63.7 | J | ASTM D3763 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648 | ||
| 0.45 MPa, unannealed | 138 | ℃ | ASTM D648 |
| 1.8 MPa, unannealed | 132 | ℃ | ASTM D648 |
| Embrittlement temperature | -129 | ℃ | ASTM D746 |
| Linear coefficient of thermal expansion | |||
| MD | 6.8E-5 | 1/℃ | ASTM D696 |
| Thermal conductivity coefficient | 0.19 | W/m/K | ASTM C177 |
| Sunshade coefficient | NFRC 100-2010 | ||
| Clear：5.99 mm | 0.970 | NFRC 100-2010 | |
| Gray or Bronze：5.99 mm | 0.770 | NFRC 100-2010 | |
| U Factor | NFRC 100-2010 | ||
| Summer：5.99 mm | 0.850 | BTU/hr/ft²/°F | NFRC 100-2010 |
| Summer：9.53 mm | 0.780 | BTU/hr/ft²/°F | NFRC 100-2010 |
| Winter：5.99 mm | 0.920 | BTU/hr/ft²/°F | NFRC 100-2010 |
| Winter：9.53 mm | 0.850 | BTU/hr/ft²/°F | NFRC 100-2010 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | 8.2E+16 | ohms·cm | ASTM D257 |
| Dielectric strength | |||
| 3.18 mm in air | 15 | kV/mm | ASTM D149 |
| Dielectric constant | ASTM D150 | ||
| 10 Hz | 2.96 | ASTM D150 | |
| 60 Hz | 3.17 | ASTM D150 | |
| Dissipation factor | |||
| 60 Hz | 9.0E-4 | ASTM D150 | |
| Arc resistance | ASTM D495 | ||
| — | 10.0 | sec | ASTM D495 |
| — | 120 | sec | ASTM D495 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | UL 94 | ||
| 1.50 mm | HB | UL 94 | |
| 10.00 mm | V-0 | UL 94 | |
| Flash Ignition Temperature | 440 | ℃ | ASTM D1929 |
| Horizontal Burn（AEB） | < 2.54 | cm | ASTM D635 |
| Autoignition temperature | 550 | ℃ | ASTM D1929 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.586 | ASTM D542 | |
| Transmittance | ASTM D1003 | ||
| 3000 µm | 86.0 | % | ASTM D1003 |
| 3000 µm | 50.0 | % | ASTM D1003 |
| 3000 µm | 18.0 | % | ASTM D1003 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | ASTM D785 | ||
| M-level | 70 | ASTM D785 | |
| R-level | 118 | ASTM D785 | |
| Tensile modulus | 2340 | MPa | ASTM D638 |
| tensile strength | ASTM D638 | ||
| yield | 62.1 | MPa | ASTM D638 |
| limit | 65.5 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 110 | % | ASTM D638 |
| Bending modulus | 2380 | MPa | ASTM D790 |
| bending strength | 93.1 | MPa | ASTM D790 |
| Compression modulus | 2380 | MPa | ASTM D695 |
| compressive strength | 86.2 | MPa | ASTM D695 |
| shear modulus | 786 | MPa | ASTM D732 |
| shear strength | ASTM D732 | ||
| — | 68.9 | MPa | ASTM D732 |
| — | 41.4 | MPa | ASTM D732 |
| Poisson’s ratio | 0.38 | ASTM E132 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Yield |
| 3. Ultimate |
| 4. Tungsten Electrodes |
| 5. Steel Strip Electrode |
| 6. K09 Bronze |
| 7. I35 Dark Gray |
| 8. Clear |
| 9. I30 Gray |
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