Fr4 epoxy sheet

FR4 Epoxy Sheet

FR-4 Epoxy Sheet, also known as epoxy fiberglass insulation sheet , insulation sheet, fiberglass sheet, and Epoxy sheet.

We can offer the following items :
FR4 Sheet, also calls G10 sheet
3240 sheet, also calls G11 sheet.
CNC Machined Parts ( according to your customized )

*TG155c F class
*High heat resistant and smoothness
*Excellent mechanical properties and electric properties

It is used in mechanical, electrical and electronic insulation structure parts. Chemical machine parts. General machines parts and gear, generators, Pads, base, baffle,Generator, transformer, fixture, inverter, motor. as insulating structural parts for electric machine and apparatus equipments.

Raw material: 1080, 2116, 1506,7628 fabric

Thickness: 0.1mm -100mm

Color: White, yellow, light green

Flammability: 94V-0

Density: 0.8 g/cm3 ,1.46g/cm3 ,1.6 g/cm3 , 2.1g/cm3

Material: Flame- Retardant Epoxy Resin + Fiber glass Fabric

Standard size: 1020*1220mm(40 “×48” ) and 1020*2440 or customized

General Application: Electrical Insulation

Certification: ISO9001,ISO14001,CQC,UL

FR-4 Epoxy Sheet, also known as insulation sheet, fiberglass sheet, and Epoxy sheet, it is made of alkali-free E-glass cloth impregnated with epoxy resins by processing under heat and pressure. It owns the character of high temperature resistance, High-intensity, Flame-retardant grades to UL94-V0, high mechanical properties and dielectric properties, good heat resistance, good-smoothness, etc.

Main Features
* Low water absorption rate
* Hard to be deformed
* High mechanical strength
* Good electric performance weather under the moist or dry environment, Flame retardant grade could reach 94-V0
* High temperature resistant, high dielectric performance and mechanical processing performance.

Product Application
1、It is used in mechanical, electrical and electronic insulation structure parts.
2、It is used in Chemical machine parts.
3、It is used in General machines parts and gear, generators, Pads, base, baffle, Generator, transformer, fixture, motor.
4、It is used as insulating structural parts for electric machine and apparatus equipment.

Technical Parameters

Material Epoxy resin + fiberglass cloth
Fire Resistance UL94 V-0
Size 1020x1220mm, 1220x2440mm, 1020x2040mm
Thickness 0.1mm – 150mm
Temperature resistance  130℃
Color green,yellow,black,orange,white
Warpage 0.3% mm
Processing 3D or 2D drawings can be provided
Item Unit Result
Voltage Resistance(penetrating) KV/mm 18
Voltage Resistance KV/mm 12
Volume resistivity Ω*cm 10 ^6
Surface resitance Ω*cm 10 ^6
Compressive Strength(Vertical) MPA ≥350
Compressive Strength MPA ≥300
Dielectric constant(50HZ) / ≤5.5
Bending strength kg/mm2 ≥340
Anti-impact intensity KJ/ m2 ≥33
Density g/cm³ 1.8 – 2.1

Machining Equipment

Fr4 epoxy sheet


Who is Core-Tex?
Shenzhen Core-Tex Composite Materials Co.,Ltd. is an emerging enterprise devoted to Fiberglass Epoxy Board (Halogen-Free FR-4, white lightweight board,FR-4 / FR-5, G10 / G11,3240 Board ), Fiberglass Laminate Sheet and CNC Machined Parts ( Fr-4 Insulation Panel ,Holster support plate ,Epoxy Plate Skeleton, Insulation Module, IPAD AND IPHONE Cover Case ,Insulation Gasket) ,etc

Can you provide free samples?
We can provide A4 format size samples for free.

Who pay the courier fee?
Customers need to pay the courier fee.

Shall customer customize the size?
The commonly used size is 1020mmx1220mm,1020mmx1440mm, 1220mmx1220mm,1220mmx1440mm, other sizes can be customized by customers’ requirement .

What’s your delivery time?
Within 5000 sheets with normal size: within 7 days after deposit received. 6000~20,000 sheets : within 15 days after deposit received. More than 20,000 sheets: According to delivery terms. Remark: Expected circumstances may lead to delivery delay, customer will be informed in time.

What’s your payment methods?
T/T, L/C, Paypal or Western Union.

What’s your shipping port?
Shanghai, Shenzhen or according to customer’s request.

Shenzhen Core-Tex Composite Materials Co., Ltd.



Address: Room 578, Zhongkang Office Building, Zhongkang Road, Futian District
Zip: 518000
Country/Region: China (Mainland)
Province/State: Guangdong
City: Shenzhen

Get in touch

This contact form is deactivated because you refused to accept Google reCaptcha service which is necessary to validate any messages sent by the form.