GPO-1
Gpo-1
GPO-1 is a is a high temperature polyester laminate that exhibits excellent retention of electrical and mechanical properties at elevated temperatures. UL, Inc. has granted GPO-1 the highest thermal recognition ever achieved by any glass polyester laminate (U.L. File No. E81893).
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Applications
The GPO-1 is designed for use in high voltage transformers, D.C. motors and elsewhere when materials with high thermal indices are required.
Specifications
Physical Data
| Color | Tan |
|---|---|
| Barcol Hardness, Scale | 52 |
| Specific gravity (ASTM D-792) | 1.62 |
| Density, Lbs/ln³ | 0.050 |
| Water absorption % (ASTM D-229) | 0.30 |
| UL Flammability, Class (UL94) | HB |
| Flame Resistance | |
| Ignition Time, Seconds (ASTM D-229) | 77 |
| Burning Time, Seconds (ASTM D-229) | 256 |
| Coeffecient of Thermal Expansion, ln/ln/°C (ASTM D-696) | 2.9 x 10^-5 |
| Operating Temperature, °C | 210 |
Mechanical Data
| Tensile Strength, psi (ASTM D-638) | 13 000 |
|---|---|
| Flexural Strenght, psi (ASTM D-790) | 25 000 |
| Modulus of Elasticity in Flexure, psi (ASTM D-790) | 1.70 x 10^6 |
| Compressive Strenght, psi (ASTM D-695) | 33 000 |
| Bond Strength, Thickness 1/2", psi (ASTM D-229) | 1 400 |
| Shear Strength, psi (ASTM D-732) | 14000 |
| Impact Strength, Izod Edgewise, Ft lbs/ln Notch (ASTM D-256) | 10.1 |
Electrical Data
| Dielectric strength, Perpendicular, Short Time In Oil 1/16" VPM (ASTM D-149) | 400 |
|---|---|
| Dielectric Strenght, Parallel, Step-By-Step In Oil, KV (ASTM D149) | 62.0 |
| Arc Resistance, Seconds (ASTM D-495) | 150 |
| Dielectric constant @ 60Hz (ASTM D-150) | 4.20 |
| Dissipation factor @ 60Hz (ASTM D-150) | 0.01 |
N.B. The information presented may differ from practice. We recommend conducting tests according to the conditions of use. We accept no responsibility for results obtained by the application of this information or the safety and suitability of our products. The data is subject to certain variations without notice.
