Description

Products Description

Transformer insulation pressboards, also known as bakeboard and phenolic laminated board, uses high-quality bleached wood paper and cotton lint paper as reinforcements, and is made of phenolic resin reacted with high-purity, fully synthetic petrochemical raw materials. Wooden boards made of resin adhesive.

Due to their properties of insulation, no static electricity, wear resistance, and high-temperature resistance, bakelite boards have become insulating switches and variable resistors for electronic products, molds for machinery and fixtures on production lines, and can be used in transformer oil and other products.

Thickness: ≥0.5mm
Width: Customizable

Density :1.1-1.3 g/cm³
Dielectric strength :≥ 60 kV/mm
Oil absorption approximately: 25%-30%
Moisture content: ≤ 0.5% (after vacuum drying)
Heat resistance :Class A (105°C)

Specific location for transformer application

Application Position	Functional Role
Insulation between high and low voltage winding layers	Prevent electrical breakdown between different voltages
Insulation between winding and iron core	Provide space and electrical isolation
Supporting structures	Maintain the stability of the winding and form an oil channel structure
Oil channel gaskets / Oil circuit boards	Ensure the circulation and heat dissipation of transformer oil
Tubular insulating components (molded parts)	Processed into cylinders and epoxy components, used as insulating supports