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FR-4 Epoxy Fiberglass Laminate Sheet
FR4 Epoxy Fiberglass Laminate Sheet is a kind of laminated sheet formed through heat pressing after the electric industry fiberglass cloth dips into epoxy resin.Suitable as the mechanical, electric and electronic insulation structural components which are used under homeothermic and middle temperatures with a certain mechanical performance and electric performance.
This sheet is made of glass fiber cloth impregnated with brominated epoxy resin and heated and pressurized. It has high mechanical properties, dielectric properties and flame retardant properties, good heat resistance and moisture resistance, and good machinability;
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Specification
Specification Overview | |
Name | FR4 Epoxy Fiberglass Laminate Sheet |
Base Material | Epoxy Resin + Fiber Glass |
Color | GreenYellowRedBlackWhite,etc Color can be customized according to customer requirements |
Thickness | 0.1mm – 300mm |
Dimensions | Regular size are 1020x1220mm,1020x2040mm,1220x2440mm, 1220 x 3100mm, 1600 x 3200mm, 1800 x 3200mm, 2000 x 3200mm Special size, we can produce and cut according to customer’s requirements. |
Density | 1.97g/cm3 – 2.2 g/cm3 |
OEM | Accepted |
Description
Indicator Name | Unit | Indicator Value | |
Density | g/ cm³ | 1 . 8 – 2 . 0 | |
Water Absorption | % | ≤ 0 . 5 | |
Vertical layer bending strength | MPa | ≥ 340 | |
Vertical layer compression strength | MPa | ≥ 350 | |
Parallel layer impact strength (simple beam method notch) | K J/ m² | ≥ 37 | |
Parallel layer shear strength | MPa | ≥ 34 | |
Tensile Strength | MPa | ≥ 300 | |
Vertical layer direction electric strength (90 ℃± 2 ℃ in oil) | 1mm | KV/ mm | ≥ 14 . 2 |
2mm | ≥ 11 . 8 | ||
3mm | ≥ 10 . 2 | ||
Parallel layer direction breakdown voltage (90 ℃± 2 ℃ in oil) | KV | ≥ 40 | |
Dielectric loss factor (50 Hz) | – | ≤ 0 . 04 | |
Insulation resistance | Normality | Ω | ≥ 5 . 0 × 101 2 |
After immersed in water for 24 h | ≥ 5 . 0 × 101 0 | ||
Flammability (UL-94) | Level | V- 0 | |
Application Scenarios
It is widely used as structural parts in motors and electrical equipment, including various switches, electrical insulation, FPC reinforcement boards, carbon film printed circuit boards, computer drilling pads, mold fixtures, etc. (PCB testing Frame); and can be used in humid environments and transformer oil