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Quick Details

  • Place of Origin: Jiangxi, China (Mainland)
  • Brand Name: Honglida(HLD)
  • Model Number: FR4
  • Type: Insulation Sheet
  • Material: Fiber glass, epoxy resin
  • Application: High Temperature, High Voltage, electrical insulation sheet
  • Rated Voltage: 220V
  • Tensile Strength: 400 MPa
  • Item Name: electrical insulation laminate epoxy glass fabric FR4 sheet
  • Typical Color: green, light green, yellow, black
  • Size available: 1020mm x1220mm, 1160mm x1260mm, 1220x2440mm, OEM Size
  • Thickness: 0.1-150mm
  • Customized Color: Acceptable
  • Surface resistance: ≥1010
  • Reinforcement: Fiber glass
  • Our Certification: UL,RoHS, SGS, ISO9001:2008
  • Feature: FR4 sheet

Packaging & Delivery

Packaging Details the electrical insulation laminate epoxy glass fabric FR4 sheets packed in pallets or wooden cases according to sizes. Customized acceptable.
Delivery Time Within 7-15 days after contract
Product Description

Electrical insulation laminate epoxy glass fabric FR4 sheet

Electrical insulation laminate epoxy glass fabric FR4 sheet is a thermosetting industrial laminate consisting of a continuous filament fiber glass fabric(cloth) material with an flame retardant epoxy resin binder, natural color is typically a yellowish to light green. The most versatile all around laminate grades are continuous glass woven fabric impregnated with an epoxy resin binder. Epoxy resins are among the most versatile and widely used plastics in the electronics field, primarily because water absorption is virtually nil, rendering it an outstanding insulator.





Water absorption



Flexural strength



Surface resistivity (C-96/20/65)


Volume resistivity(C-96/20/65)



Dielectric lose factor (1MHz)


Heat resistance 220°C 20mm

No bubble

Flammability UL94 (1.6mm)



Solvent resistance

No change




Charpy impact strength





1020×1220 / 1160×1260 / 1220×2440

Note: Colors white, yellow, black, light green are available.





1. Enabe customized cut to size
2. SGS, RoHS, UL

3. We resarch & develop this product for more than 10 years.




* High mechanical & electrical strength
* Excellent rigidity & dimensional stability
* Good dielectric properties
* Low water absorption
* Flame resistance  
* Tighter thickness tolerance
* Flat and straight panel
* Smooth and clean surface.
* Easy to machine
* Great properties, reinforced, smooth surface

* Stable electric insulation performance,good flatness.


Widely used as insulating structural parts in electrical & mechanical equipments, such as
generators, transformers, electromotor,fixture,terminal boards, PC boards, washers, reverse
converter and other electrical insulation components.

Detailed Images

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Our Services

We also CNC to your CAD drawing, cut to size with standard tolerance, and sell full sheets in quantity. This material is also available THINNER and THICKER. Please call or email to our Sales Department for information.  


Packaging & Shipping




Company Information


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China (Mainland) | Manufacturer, Trading Company
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1 Transactions 10,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $38,000
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