Home » FR4 Epoxy Fiberglass Laminate Sheet

FR4 Epoxy Fiberglass Laminate Sheet

Specification Overview
Name FR4 Epoxy Fiberglass Laminate Sheet
Base Material Epoxy Resin + Fiber Glass
Color Green\Yellow\Red\Black\White,etc
Color can be customized according to customer requirements
Thickness 0.1mm – 300mm
More than 300mm can be produced according to product requirements
Dimensions Regular size are 1020x1220mm,1020x2040mm,1220x2440mm;
Special size, we can produce and cut according to customer’s requirements.
Density 1.97g/cm3 – 2.2 g/cm3
OEM Accepted
Contact Us

Product Introduction

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 homoeothermy 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;

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

Product Photograph

fr4 sheet
fr4 board
fr 4 laminate
epoxy fr4
fr4 glass epoxy
fr4 laminated fiberglass

Main Specifications

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 ≥ 5 . 0 × 101 2
After immersed in water for 24 h ≥ 5 . 0 × 101 0
Flammability (UL-94) Level V- 0


Q1:  Samples
We can send you free sample,but you need to pay for the shipping charge.

Q2: How about the quality of mass production ?
Our warehouse staff will keep another sample the same as you received.the production process will be under your requirement.please rest assured about the quality.

Q3: Delivery time
It depends on order quantity.Generally speaking, the delivery time will be within 7 to 15 days.

Q4: Package
We will use professional craft paper to package on plywood pallet.if you have special package requirements, we will pack as your need.

Q5: Payment
We accept T/T,L/C,Western Union,Paypal , etc.


Thank you for your message. It has been sent.
There was an error trying to send your message. Please try again later.