FR4, G10 and G11 are epoxy-resin laminates reinforced with woven glass cloth. In the NEMA grade system, G10 is the base epoxy-glass grade, FR4 is its flame-retardant version, and G11 is the higher-temperature grade. All three are supplied as sheet in 300 × 300, 300 × 400 and 1000 × 1000 mm, or cut to size.
| Grade | Dielectric strength | Thermal class | Thickness | Sheet sizes |
|---|---|---|---|---|
| FR4 | 20 kV/mm | Class B / 130C | 1.6 / 3 mm | 300x300mm, 300x400mm, 1000x1000mm, Custom size |
| G10 | 18 kV/mm | Class B / 130C | 1.5 / 3 mm | 300x300mm, 300x400mm, 1000x1000mm, Custom size |
| G11 | 22 kV/mm | Class H / 180C | 1.5 / 3 mm | 300x300mm, 300x400mm, 1000x1000mm, Custom size |
Epoxy resin on woven glass cloth — the base grade of the family. Supplied for insulation panels, spacers, barriers and fixtures.
The flame-retardant version of G10; "FR" stands for flame retardant. Supplied for electrical insulation panels, spacers, barriers and machined parts.
An epoxy-glass grade with a higher temperature rating than G10 and FR4. Supplied for insulation parts exposed to elevated heat and mechanical load.
Standard sheets are 300 × 300 mm, 300 × 400 mm and 1000 × 1000 mm. Other sizes, and parts cut or machined to drawing, are quoted on request.
Both are epoxy resin on woven glass cloth. FR4 is the flame-retardant version of G10.
The G11 sheet supplied here is rated Class H, 180 °C. FR4 and G10 are rated Class B, 130 °C.
300 × 300 mm, 300 × 400 mm and 1000 × 1000 mm, plus custom sizes.
Yes. Sheet is supplied cut to size or as parts to your drawing, quoted per job.
Perfect Insulations has manufactured thermal and electrical insulation in Bengaluru since 1995 and works to ISO 9001:2015. Send your drawing or specification with the material, thickness and quantity.