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3021-TG Phenolic Paper Laminate – 3021-TG electrical insulation board manufacturer, factory direct export
3021-TG Phenolic Paper Laminate – 3021-TG electrical insulation board manufacturer, factory direct export 3021-TG Phenolic Paper Laminate sheet stock close-up, China factory supplier
3021-TGPhenolic LaminatesFactory DirectCNC Cut to Size

3021 / TG Phenolic Paper Laminate Sheet

3021 (TG) phenolic paper laminate is an economical bakelite paper board offering good electrical insulation and easy machinability for general-purpose low-voltage insulation and mechanical parts.

Standard / GradeIEC / GB 3021
Base MaterialInsulating paper + phenolic resin
ColourReddish-brown / black
Density≈ 1.3–1.4 g/cm³
Thickness Range0.5 mm – 50 mm
Sheet Size1020×1220 mm · custom
Operating Temp.Class E (120 °C)
Dielectric Strength≥ 10 kV/mm (perpendicular)
Flexural Strength≥ 80 MPa
Water Absorption≤ 0.80%
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Key Advantages

Why Choose Our 3021-TG

💲

Economical

Cost-effective phenolic paper board for general low-voltage insulation.

🛠️

Easy to Machine

Punches, drills and cuts cleanly for washers and panels.

⚡

Good Insulation

Reliable dielectric performance for low-voltage equipment.

📦

Versatile

Widely used in switchgear panels, washers and backing boards.

Description

3021 / TG Phenolic Paper Laminate

3021 (TG) phenolic paper laminate is an economical insulation board produced by impregnating insulating paper with phenolic resin and hot-pressing it into rigid sheets. It is the cost-effective member of the phenolic laminate family for general-purpose low-voltage insulation.

With dielectric strength ≥10 kV/mm and Class E heat resistance, 3021 punches, drills and cuts cleanly, making it ideal for switchgear panels, washers, backing boards and terminal strips. It offers good electrical insulation at an attractive price point.

We supply 3021 from 0.5 mm to 50 mm thick as sheets or punched/CNC-cut parts, with factory-direct export to the USA, Mexico, Brazil and Europe.

Applications

Typical Uses

Low-Voltage Insulation
Switchgear Panels
Washers
Backing Boards
Terminal Strips
Punched Parts
Electrical Panels
General Insulation
FAQ

Frequently Asked Questions

What is 3021 / TG phenolic paper board?

3021 is an economical phenolic laminate made from insulating paper and phenolic resin, used for general low-voltage insulation.

What is 3021 used for?

It is used for low-voltage insulation, switchgear panels, washers, backing boards and punched parts.

How does 3021 differ from 3025B?

3021 uses paper reinforcement (more economical, easy to punch) while 3025B uses cotton cloth (tougher, better for machined gears and bearings).

What thicknesses are available?

We supply 3021 from 0.5 mm to 50 mm thick in standard and custom sizes, including punched parts.

Do you export 3021 worldwide?

We export 3021 to the USA, Mexico, Brazil, Europe and globally, with free samples available.

Order 3021-TG Direct From The Factory

Get a factory-direct quote, free sample and CNC cutting to your exact dimensions within 24 hours.

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