Phenolic paper laminated board (electro-wood board) | Electrical insulation board supplier
Thickness Range 3mm – 80mm
Standard Size 1000×1220mm / 1000×2000mm
Color Orange / Black
Electrical Insulation Medium Grade
Water Absorption Very Low
High-quality phenolic paper laminated sheet (bakelite board) with excellent electrical insulation, mechanical strength, and machinability. Custom sizes and CNC machining available.
Phenolic Paper Laminated Sheet (Bakelite Board)
Phenolic paper laminated sheet, commonly known as Bakelite board, is a widely used industrial insulation material made from high-quality bleached wood pulp paper and cotton linter paper, impregnated with phenolic resin and processed under high temperature and pressure.
It offers excellent electrical insulation performance at normal temperature, good mechanical strength, and outstanding machinability, making it one of the most widely used laminated materials in the electrical and mechanical industries.
What is Bakelite Board?
Bakelite board is a paper-based phenolic laminate produced by impregnating insulating paper with high-purity synthetic phenolic resin, followed by baking and hot pressing.
It is characterized by:
Stable electrical properties at room temperature
Good mechanical strength
Anti-static performance
Easy machining and fabrication
It is also suitable for use in transformer oil environments.
Key Features of Phenolic Paper Laminated Sheet
Good Electrical Insulation at Room Temperature
High Mechanical Strength and Durability
Anti-static Properties
Low Water Absorption (Non-hygroscopic)
Non-conductive and Safe for Electrical Applications
Excellent Machinability for CNC Processing
Heat Resistant for Industrial Applications
Product Description:
| Features and uses | It is suitable for test fixtures, PCBs, and ICT fixtures | |
| Resin type | Phenolic resin | |
| Substrate | Wood fiber paper | |
| Thickness (mm) | 2.0 ~ 90 | |
| Size (mm) | 1030 x 2070 & 1040*2080 | |
| Color | Black Red | |
| Specific gravity (g/cm 3) | L41~1.45 | |
| Insulation resistance | C-90/20/65 | ≥10¹2 |
| Flexural strength | A | 8~12(Kgf/mm²) |
| Flexural elasticity | A | 750-900 (Kg/mm2) |
| Capacitance (dielectric constant) | C-90/20/65 | 4.0~5.5 atlMHZ |
| Loss Tangent (Loss Angle) | C-90/20/65 | 0.03-0.05 atl MHZ |
| Friction voltage | A | <100V |
| Water absorption rate | E-24/50 +D-24/23 | WL6% |
| Bending rate | A | ≤0.3% |
| Heat resistance | A | 12O℃*12Omin |
| Hardness | A | 90±2 |
Applications
Phenolic paper laminated sheets are widely used in industries requiring reliable insulation and mechanical performance.
Electrical & Industrial Applications
Insulation structural components in motors and electrical equipment
Transformer insulation parts (oil-compatible)
Distribution boxes and switchgear
Machining & Tooling Applications
PCB drilling backup boards
ICT / ITE testing fixtures
Jig and fixture plates
Mold clamping plates
Surface grinding pads
General Industrial Uses
Packaging machinery components
Silicone rubber molds
Combs, trays, and other industrial parts
CNC Machining Capabilities
We provide full customization services for bakelite boards:
CNC cutting & milling
Drilling & tapping
Engraving & shaping
Custom insulation components
👉 Tight tolerance and stable quality for industrial applications
Why Choose Our Bakelite Boards
✔ High-quality raw materials for stable performance
✔ Professional manufacturing process (hot pressing technology)
✔ Excellent machinability for precision parts
✔ Wide thickness range (3–80mm)
✔ Factory direct supply with competitive pricing
Customization Options
We support:
Custom sizes and thickness
CNC machined parts
OEM / ODM production
Drawings or sample-based manufacturing
Get in Touch with Us
Contact us for insulation materials, engineering plastics, or drawing-based custom machining services.
Our team is ready to provide technical advice and fast quotations to support your project.
