Materials / Fishpaper
Vulcanized Fiber · Electrical Insulation

Fishpaper for industrial electrical insulation.

Fibrous vulcanized fiber board offering excellent dielectric strength at a controlled cost. Precision laser-cut for coils, transformers, and electrical terminals.

Overview

A reliable, economical electrical insulator.

Fishpaper is a fibrous vulcanized fiber board made of chemically treated cellulose. This process gives it density and mechanical strength superior to ordinary board, as well as high dielectric strength.

Used for decades in the electrical industry, Fishpaper is the economical choice for insulating coils, transformers, motors, and distribution panels. P&P Colorismédia laser-cuts it with precision for clean, repeatable parts, with no burrs or fraying.

Technical Data
Dielectric strength
12–18 kV/mm
Available thicknesses
0.25 – 3.2 mm
Service temp.
Up to 105°C
Standard color
Brown / Yellow
Properties

Technical characteristics of Fishpaper.

High Dielectric Strength

Dielectric strength of 12 to 18 kV/mm — effective for insulating live conductors in windings and transformers.

Mechanical Strength

Denser and stronger than standard board thanks to the vulcanization process. Withstands mechanical stress during assembly and winding.

Cost-Effectiveness

An economical solution proven for decades in the electrical industry. Available in large quantities with short lead times.

Precision Cutting

Cuts cleanly with a laser — clean edges, repeatable complex shapes. No fraying or delamination even at the thinnest gauges.

Applications

Uses in industry.

  • 01Insulation for coils and windings of electric motors
  • 02Slot separators in stators and rotors
  • 03Low- and medium-voltage transformer insulation
  • 04Terminal and connection protection in electrical panels
  • 05Insulating interleaves in battery and electronic assemblies
Minimum order
None
Available format
Sheets, custom cut parts
Cutting process
Laser · Die-cutting

Need custom Fishpaper parts?

Free quote within 24 h, no minimum order, prototypes welcome.

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