ESD FR4 Epoxy Fiberglass Sheet

ESD FR4 Sheet is an anti-static epoxy fiberglass laminate designed for applications that require both mechanical strength and electrostatic discharge control.

It is made from electrical glass cloth or glass mat impregnated with epoxy resin, high-temperature resin and anti-static resin, then laminated under pressure. The result is a rigid fiberglass epoxy board with:

• controlled anti-static performance

• high mechanical strength

• good heat resistance

• low water absorption

• good dimensional stability

• excellent machining performance

Compared with ordinary FR4 sheet, ESD FR4 is used where static buildup must be controlled during production, testing or equipment operation

The main difference between ESD FR4 and ordinary FR4：

ESD FR4 is designed with controlled anti-static or static-dissipative performance, while ordinary FR4 sheet is a standard insulating laminate without specific ESD control. 

ESD FR4 is used in electronics and fixture applications where static buildup must be reduced, 

while ordinary FR4 is used where insulation, strength and flame resistance are enough.

ESD FR4 sheet is a special version of FR4 laminate in which anti-static agents are introduced during production so the sheet can achieve controlled electrostatic behavior while retaining the basic advantages of FR4.

In practical use, this material is selected when the application needs:

the rigidity and strength of epoxy fiberglass sheet

flame-retardant behavior

reliable machining performance

stable anti-static or static-dissipative surface performance

This makes it suitable for electronics manufacturing, test fixtures, semiconductor-related tooling, ATE fixtures and anti-static industrial components.

ESD FR4 sheet is produced from:

• electrical glass cloth or glass mat

• epoxy resin

• high-temperature resin

• anti-static resin

  Item	Specification
  Product Name	ESD FR4 Sheet (Anti-Static FR4)
  Base Material	Epoxy resin + 7628 fiberglass cloth
  Color	Full black, double side ESD, single side ESD
  Thickness	1~200mm
  Regular Size	1020 × 1220 mm, 1220 × 2040 mm or Customized
  Density	1.8 g/cm³ – 2.0 g/cm³
  Thermal Class	Class B 130°C
  Anti-Static Index	1.0 × 10^6 – 1.0 × 10^9
  Flammability	UL 94 V-0

Key Features

1. Controlled Anti-Static Performance

The board is designed to provide controlled electrostatic behavior for ESD-sensitive environments.

2.High Mechanical Strength

The fiberglass reinforced epoxy structure gives the sheet strong rigidity and support for machined industrial parts.

3.Good Heat Resistance

The material is suitable for applications requiring stable performance under elevated working temperatures.

4.Moisture Resistance

It has good moisture resistance, which helps maintain dimensional stability in practical use.

5.Low Water Absorption

Low water absorption helps reduce deformation risk during long-term service.

Why Buyers Choose ESD FR4 Sheet

From a buyer's perspective, ESD FR4 sheet solves more than one problem at the same time.

It provides:

• anti-static control

• rigidity

• flame retardancy

• dimensional stability

• machining suitability

Customers usually choose it when the application needs:

• a rigid anti-static board

• a machinable FR4 sheet

• flame-retardant ESD performance

• stable sheet quality for fixtures and electronic tooling

In many applications, ordinary FR4 is mechanically suitable, but not enough once ESD control is added to the requirement. That is where ESD FR4 becomes the practical choice.

How to Choose the Right ESD FR4 Sheet

Before ordering, buyers should confirm the following points:

1. ESD Requirement: Do you need anti-static surface control, static-dissipative range, or full anti-static board structure?

2. Board Type Should it be:

full anti-static

single-side anti-static

double-side anti-static

3. Thickness

The correct thickness depends on structural design, support load and machining depth.

4. Flame Requirement

If flame-retardant performance is required, ESD FR4 is usually preferred over ESD G10.

5. Machining Requirement

If the material will be CNC machined, drilled or milled, drawing review is recommended before production.

FAQ:

Q1: What is the anti-static range of ESD FR4 sheet?

A: According to the provided data, the anti-static index is 1.0 × 10^6 ~ 1.0 × 10^9.

Q2: Can ESD FR4 sheet be machined?

A: Yes. It has good processing performance and can be cut, drilled, milled and CNC machined into custom parts.

Q3:What industries use ESD FR4 sheet?

A: It is commonly used in electronics manufacturing, ICT and ATE fixtures, semiconductor-related tooling, anti-static industrial parts and motherboard production support applications.

Q4:Is ESD FR4 available in different structures?

A: Yes. It can be supplied as full anti-static board, single-sided anti-static board or double-sided anti-static board.

ESD FR4 sheet is a practical anti-static epoxy fiberglass laminate for electronics, fixture manufacturing and industrial applications where mechanical strength, flame retardancy and ESD control are all required.