Glass Epoxy
Typical Properties of Glass Epoxy & Melamine
|
Property |
Test Method | G-9 | G-10 / FR4 | G-11 |
|
Mechanical Properties |
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| Specific Gravity | ASTM D792 | 1.85 | 1.85 | 1.82 |
| Tensile Strength (p.s.i.) | ASTM D638 | 39,000 | 38,000 | 37,000 |
| Flexural Strength (p.s.i.) | ASTM D790 | 55,000 | 60,000 | 75,000 |
| Compressive Strength (p.s.i.) | ASTM D695 | 70,000 | 66,000 | 63,000 |
| Rockwell Hardness | ASTM D785 | M115 | M115 | M112 |
| Bond Strength (p.s.i.) | ASTM D229 | 1,900 | 2,300 | 2,200 |
| Shear Strength (p.s.i.) | ASTM D732 | 18,000 | 21,500 | 22,000 |
|
Thermal Properties |
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| Max Service Temperature (°C) | – | 140 | 140 | 180 |
| Coefficient of Linear Thermal Expansion (in/in/°C) | ASTM D696 | 0.0000060 | 0.0000010 | 0.0000020 |
| Flammability | UL94 | V-0 | V-0 | HB |
|
Electrical Properties |
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| Dielectric Constant At 1 MHZ | ASTM D150 | 7.0 | 4.8 | 5.0 |
| Dissipation Factor At 1 MHZ | ASTM D150 | 0.15 | 0.32 | 0.20 |
| Dielectric Strength (V/mil) | ASTM D149 | 450 | 800 | 900 |
|
Water Absorption Rates |
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| Water Absorption -24 hrs. (%) | ASTM D570 | 0.60 | 0.10 | 1.1 |
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets.