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 EPGC201EPGC203EPGC308EPGC202EPGC204EPGC308CTI600V0 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
Breakdown voltage parallel to laminations
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 
News
26.9. 2019

Schönbrunn Zoo in Vienna

On Sunday, September 22, 2019, LABARA s.r.o. for their employees and their families a trip to the zoo in the beautiful gardens of Schönbrunn Palace in Vienna, Austria.
17.9. 2018

ENERGETAB 2019

On 17 - 19 September 2019, LABARA s.r.o. (also presentation of LABARA CABLES, Vektor plus was done ..) attended the 32nd International Fair of Electrical Engineering ENERGETAB…
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