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EPGC 202/FR4/HGW2372.1/EP2 Flame Retardant Epoxy Fiberglass Board Manufcture

Colour: Green, Black, Yellow Thermal Charactersitices:130℃; Density:1.98-2.05G/Cm3; Thickness:0.5mm-200mm; Standard size: 1020*1220,1020*2020,1220*2040,1220*2440(Support Customization)

Description of FR-4 Flame Retardant Epoxy Fiberglass Board

FR-4 flame retardant epoxy fiberglass board is also called epoxy fiberglass cloth laminated board. It is plate-like laminated products formed by electronic grade fiberglass cloth impregnated with epoxy resin and fire retardant under hot pressing of high temperature and pressure with high mechanical property and dielectric property, good heat and moisture resistance, as well as strong mechanical processing property. The insulation class is F class, and the main color is green, black and yellow.

Why Choose ZTelec Group's Nema FR4 Epoxy Fiberglass Cloth Laminated Board:

1、 Automatic Coating: Glue evenly, strictly control PP sheet move.

2、 Fully automatic special equipment: Without one machine multi-purpose, which can guarantee product quality stability.

3、 Quality testing: Strict factory inspection, total quality management TQM

4、 Processing Service: According to your requirements, we process and customize on time and quality

5、UL,SGS and ROSH certificates are complete, and sample testing can be provided

ZTelec Group's Nema FR4Sheet VS Other manufacture's FR4 Sheet:

FR4 Epoxy Resin Fiberglass Sheet Usage:

Suitable for high performance electronic insulation requirements, such as FPC reinforcement board, PCB drilling pad, potentiometer carbon film printing fiberglass board, precision star gear (wafer grinding), precision test board, electrical (electrical) equipment Insulation struts, insulation pads, transformer insulation boards, motor insulation parts, grinding gears, electronic switch insulation boards,  lithium battery packaging,etc.

1. Fr4 eopxy resin fiberglass sheet use for industry equipment, such as transformer insulation boards, motor insulation parts, grinding gears, electronic switch insulation boards, etc 

2.Fr4 eopxy resin fiberglass sheet use for machining parts, such as insulation gasket, cruise ship parts,etc.

3.Fr4 eopxy resin fiberglass sheet use for  electronic insulation requirements, such as lithium battery.

Parameter of Nema FR4 Fiberglass Laminated Board:

Trade Name

FR4 Epoxy Fiberglass Laminates

Comply Wth Standard

IEC 60893-3:2003 /GB/T 1303.4-2009


Green, Black, Yellow

Standard size

1020*1220,1020*2020,1220*2040,1220*2440 (Support Customization)


E-Motors, batteries, semiconductors, Solar panels, Carriage wheel, transformers, solar back panels, home appliances, isolation blocks, etc.














Water Absorption (5mm)


≥ 0.06

Chemical Family



Reinforcement Type

Glass Fabrics


Thermal Charactersitices










Bending Strength



Tensile Strength



Compressive Strength L



Modulus Of Elasticity 



Impact Strength



Electrical Data



Electrical Strength 

Kv/mm, Thickness<3mm


Electrical Strength



Tracking Resistance



Tolerance of Nema FR4 Epoxy Fiberglass Laminated Board:

Thickness (Mm)

Tolerance (Mm)

Thickness (Mm) Tolerance (Mm)

0.5 -0.8


6.0 -8.0


1.0 -1.8


10.0 -15.0


2.0 - 2.8


16.0 - 20.0


3.0 -5.0


21.0 -50.0


Video of Nema FR4 Epoxy Fiberglass Laminated Board:

FR-4 flame retardant epoxy fiberglass board, produced by ZTelec Group taking high-quality fiberglass cloth and epoxy resin as raw materials, can be mass-produced with advanced automatic production lines. This product has the advantages of reliable quality, uniform appearance and color and small thickness tolerance with strict manufacturing technology. The mechanical and electrical properties of products are superior to the similar one of other companies. Its quality is recognized by domestic and foreign large enterprises such as Lens Technology in China and Schneider Electric and sold overseas like European and American areas.

Leave us a message to get quotation and sample!

If you are attractive to our products, please send us a message and we will contact you as soon as we receive it. Email: info@ztelecgroup.com Whatsapp: +8613137718313