| About |
|---|
| H755 is a glass mat reinforced thermoset polyester sheet that meets or exceeds NEMA GPO-1 properties and carries a thermal index of 155°C Electrical/165°C Mechanical. H755 is designed for use in class “F” insulation systems or elsewhere when 165°C material is required. Available thicknesses – .032″ – 2.00″. Standard color – Ivory. Meets Gov’t Specs – LP-509, I-24768/6.&& |
| Product Description | |
|---|---|
| Generic | 热固性聚酯 |
| Material Status | Commercial: Active |
| Features | HB |
| Availabilitys | North America |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.80 | g/cm³ | ASTM D792 |
| Water absorption rate | |||
| balance | 0.35 | % | ASTM D229 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 450 | J/m | ASTM D256 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Dielectric strength | |||
| StepByStep in oil | 60000 | V | ASTM D149 |
| 1.59 mm in oil | 20 | kV/mm | ASTM D149 |
| Dielectric constant | |||
| 60 Hz | 4.80 | ASTM D150 | |
| Dissipation factor | |||
| 60 Hz | 0.020 | ASTM D150 | |
| Arc resistance | 150 | sec | ASTM D495 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | HB | UL 94 | |
| Flame Resistance | ASTM D229 | ||
| Burning Time | 3.5 | min | ASTM D229 |
| Ignition time | 1.7 | min | ASTM D229 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Bond Strength（1.27 cm） | 8.27 | MPa | ASTM D229 |
| Temperature level | 155 | ℃ |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Babbitt hardness | 48 | ||
| tensile strength | 75.8 | MPa | ASTM D638 |
| Bending modulus | 11000 | MPa | ASTM D790 |
| bending strength | 172 | MPa | ASTM D790 |
| compressive strength | 276 | MPa | ASTM D695 |
| shear strength | 103 | MPa | ASTM D732 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Method A (Short-Time) |
| 3. Perpendicular |
| 4. Parallel |
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