Glass epoxy sheets
Laminated material in sheets, made from modified glass fabric as a reinforcement and epoxy resole resin. Besides good mechanical and electrical insulating properties has high climate resistance. It is used in production of components with good mechanical and electrical properties, for electrical equipment at higher temperatures or in humid environments, for stressed electrical insulating components, such as chassis, body equipment, housing parts of distribution boards, transformers, switchgears, electrical machines.
Glass epoxy sheet G10
Sheets are made from modified glass fabric as a reinforcement and epoxy resin.
It is used in the production of components with good mechanical and electrical properties, for electrical equipment at higher temperatures or in humid environments, for stressed electrical insulating components, such as chassis, body equipment, housing parts of distribution boards, transformers, switchgears, electrical machines.
Glass epoxy sheet G11 (155 °C, 180 °C, 200 °C)
Sheets are made from modified glass fabric and epoxy resin with the addition of filler.
It is characterized by excellent mechanical and electrical insulating properties, which keeps even at higher temperatures. It is characterized by resistance to tracking. It is used in the production of components with good mechanical and electrical properties, for electrical equipment at higher temperatures or in humid environments, for stressed electrical insulating components, such as chassis, body equipment, housing parts of distribution boards, transformers, switchgears, electrical machines.
Glass epoxy sheet FR-4, FR-5
Sheets are made from the modified non-alkaline glass fabric as a reinforcement and epoxy resin as a binder.
It is characterized by good mechanical and electrical insulating properties and sheets are self-extinguishing. It is used in the production of components with good mechanical and electrical properties, for electrical equipment at higher temperatures or in humid environments, for stressed electrical insulating components, such as chassis, body equipment, housing parts of distribution boards, transformers, switchgears, electrical machines.
Glass epoxy sheet Si
Sheets are made of non-alkaline glass fabric and silicone resin.
It is characterized by high temperature resistance (thermal class H) and by good dielectric properties. It is used in electrical equipment of thermal class H and where high temperature resistance and small decrease in the electrical and mechanical properties at working temperatures are needed. It is used also in high-frequency technology.
| Type according EN-60893 | Unit | EPGC201 | EPGC203 | EPGC308 | EPGC202 | EPGC204 | EPGC308CTI600V0 | SIGC202 | MFGC201 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Used name | Glass epoxy sheet G10 | Glass epoxy sheet G11 155° | Glass epoxy sheet G11 180° | Glass epoxy sheet FR-4 | Glass epoxy sheet FR-5 | Glass epoxy sheet 308CTI600V0 | Glass epoxy sheet G7 (Si) | Melamine | ||
| Type according to DIN 7735 | Hgw 2372 | Hgw 2372.4 | Hgw 2372.1 | Hgw 2372.2 | Hgw 2572 | Hgw2272 | ||||
| Type according to NEMA | G-10 | G-11 | FR-4 | FR-5 | G-7 | G-5 | ||||
| Reinforcement | glass fabric | glass fabric | glass fabric | glass fabric | glass fabric | glass fabric | glass fabric | glass fabric | ||
| Resin | epoxid | epoxid | epoxid | epoxid | epoxid | epoxid | silicone | melamine | ||
| Mechanical properties | ||||||||||
| Flexural strength flatwise perpendicular to laminations (at 20°C) | MPa | 560 | 490 | 545 | 560 | 540 | 340 | 160 | 370 | |
| Modulus of elasticity in flexure | MPa | 25x103 | 25x103 | 26x103 | 24x103 | 27x103 | 24x103 | 13x103 | 19x103 | |
| Tensile strength | MPa | 430 | 370 | 400 | 430 | 420 | 300 | 125 | 280 | |
| Compressive strength perpendicular to laminations | MPa | 630 | 560 | 620 | 520 | 600 | 350 | - | 90 | |
| Notch impact strength parallel to lamination (Charpy) | KJ/m2 | 80 | 90 | 100 | 80 | 90 | 33 | 25 | 30 | |
| Shearing strength parallel to laminations | MPa | 50 | 55 | 50 | 55 | 50 | 30 | - | 8 | |
| Dielectric properties | ||||||||||
| Dielectric strength perpendicular to layers in oil 90°C | kV/mm | 14,7 | 14,7 | 18 | 16,7 | 15,7 | 12 | 9 | 11 | |
|
KV | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 15 | |
| Dissipation factor tg | ||||||||||
| - at 50 Hz | 0,015 | 0,01 | 0,04 | 0,01 | 0,01 | 0,04 | 0,07 | 0,01 | ||
| - at 1 MHz | 0,05 | 0,05 | 0,02 | 0,05 | 0,05 | 0,04 | 0,006 | 0,004 | ||
| Permittivity at 1 MHz | 5,5 | 5,5 | 5,5 | 5,5 | 5,5 | 5,5 | 3,7 | 4,4 | ||
| Comparative tracking index (CTI) | 200 | 180 | 180 | 200 | 180 | 600 | 450 | 600 | ||
| Insulation resistance after immersion in water | MΩ | 4x105 | 3x107 | 5x104 | 27x106 | 22x105 | 5x104 | 3x106 | 3x102 | |
| Physical properties | ||||||||||
| Density | g/cm3 | 1,7 - 2,0 | 1,7 - 2,0 | 1,7 - 2,0 | 1,7 - 2,0 | 1,7 - 2,0 | 1,7 - 2,0 | 1,9 - 2,1 | 1,9 - 2,1 | |
| Temperature index (TI) | 130 | 155 | 180 | 130 | 155 | 180 | 180 | 130 | ||
| Water absorption (for thickness 3mm) | mg | 10 | 10 | 9 | 10 | 10 | 10 | 40 | 188 | |
| Flammability (category) | - | - | - | V0 | V0 | V0 / HF | V0 | V0 | ||