Black Antistatic FR4 Insulating Board | 0.5-50mm Thickness 1020x1220mm | Corrosion Resistant

In the fields of electronic assembly, precision testing, and high-voltage electrical isolation, material selection directly affects product yield and equipment lifespan. As an engineering plastic that combines structural strength and electrostatic dissipation, black antistatic FR4 insulating board has become a commonly used material for PCB test fixtures, automated equipment isolation components, and semiconductor processing carriers.

This article introduces the technical characteristics and applications of black antistatic FR4 insulating board—its thickness ranges from 0.5mm to 50mm, with a standard large board size of 1020x1220mm. It focuses on analyzing the technical basis for maintaining stable corrosion resistance and antistatic parameters in industrial environments.

Overview of Black Antistatic FR4 Insulating Board

Black antistatic FR4 is based on traditional FR4 epoxy glass cloth laminate and manufactured through a modification process. The material has a black appearance, and components with electrostatic dissipation functions are added to its surface or overall structure.

Substrate Characteristics 

It retains the basic characteristics of FR4 epoxy board, including high mechanical strength, electrical insulation performance (high breakdown voltage) and low water absorption.

Antistatic Principle 

By adding conductive materials such as carbon powder and carbon fiber, the surface resistivity of the board is adjusted to be stable within the range of 10⁶ to 10⁹ ohms. This resistivity range enables static dissipation while avoiding the leakage risk associated with conductive materials.

Visual Characteristics 

The black appearance reduces light reflection interference when used in optical inspection equipment (such as AOI), helping to improve inspection accuracy.

Core Specifications of Black Antistatic FR4 Insulation Board 

To adapt to the processing needs of different industries, black antistatic FR4 insulation boards are available in the following specifications: 

Thickness Specifications 

0.5mm, 1.0mm, 1.5mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10mm, 12mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm.

Standard size 

1020mm × 1220mm. This size is suitable for batch cutting with CNC engraving machines, and can also be used for slitting and dicing according to drawings.

Thickness Tolerance

Product thickness tolerances comply with international standards. For thick plates (20mm and above), uniformity is controlled during lamination to reduce subsequent grinding.

Customization Services 

In addition to standard plates, the following processing services are provided:

Precision Cutting: Machining irregularly shaped parts according to drawings.

Surface Grinding: Double-sided grinding of plates 20mm and above to improve parallelism.

Drilling and Chamfering: Pre-drilling mounting holes to reduce subsequent processing steps.

Antistatic FR4 Insulation Board: Corrosion Resistance and Environmental Adaptability

In chemical plants, electroplating workshops, and high-humidity environments, ordinary insulation boards may experience surface changes or decreased insulation performance due to chemical gases. Black antistatic FR4 insulation board maintains stable performance under the following conditions:

Resistant to Chemical Solvents: 

FR4 is resistant to common industrial solvents such as acetone, alcohol, and diluted acidic and alkaline cleaning agents, with no significant surface reaction or dimensional changes.

Resistant to Humid Environments: 

The material has low water absorption, maintaining stable antistatic parameters in high-humidity environments without blistering or delamination. 

Thermal Shock Resistance：

When used around wave soldering and reflow soldering equipment, antistatic FR4 can withstand short-term high temperatures with good dimensional stability.

Furthermore, this material possesses excellent electrical insulation properties, high mechanical strength, and heat resistance, making it suitable for a variety of applications.

Typical Applications of Antistatic FR4 Insulating Boards

1. Electronics Manufacturing Industry

PCB Production Equipment Components

SMT Equipment Related Components

Electronic Assembly Fixtures

ESD Antistatic Workbenches

2. Semiconductor Equipment

The semiconductor industry has extremely high requirements for the antistatic performance of materials. Black antistatic FR4 boards can be used for:

Wafer Equipment Structural Components

Automated Mechanical Components

Precision Machining Fixtures

3. Automated Equipment

In automated production lines, this material is often used for equipment partitions, mechanical support structures, and precision fixtures to ensure stable equipment operation.

4. Electrical Insulation Applications

Transformer Insulation Components

Motor Insulation Structures

High-Voltage Equipment Insulation Support Components

Choosing black antistatic FR4 insulating boards means choosing a reliable protective barrier for your precision electronic equipment. Its flexible thickness selection from 0.5-50mm, standard 1020x1220mm board size, and excellent corrosion resistance and antistatic properties make it an indispensable basic material in modern electronics manufacturing.

【About Us】 

We are a professional manufacturer of insulation materials with over 60 years of experience in producing FR4 insulation sheets. Our products are RoHS certified and sold both domestically and internationally. We offer small-batch sample testing and large-scale custom manufacturing services.

Please contact us for a quote.