Fishpaper & Vulcanized Fibre

ESPE Manufacturing Co., Inc. offers a wide selection of vulcanized fibre and fishpaper products. Both of these materials have broad uses across numerous industries where electrical insulation is required. This page will explain the differences between vulcanized fibre and fishpaper, including their respective properties and applications.

Fishpaper Rolls

What Is Commercial-Grade Vulcanized Fibre?

Vulcanized fibre is a chemically pure cellulose material that is environmentally friendly because it contains no adhesives or resins. It is a low-pressure laminate formed by the reaction between cotton or natural wood and a variety of chemicals like acids, bases, and zinc chloride. The reaction produces a slurry that is then flattened under heat and pressure to desired thicknesses.

Vulcanized fibre sheets can be machined, threaded, punched, formed, slit, wound, or molded into tubes for use in a variety of applications.

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What Is Electrical-Grade Fishpaper?

Fishpaper is an electrical insulation board or paper made from vulcanized cotton. It is used to insulate electric motors, generators, and transformers, as the flexible paper can be easily cut and shaped to fit around electrical components. The word fishpaper is the generic term for electrical-grade vulcanized fibre.

Fishpaper is a dark blue material that possesses very high tensile, dielectric, and bending strength while having enough flexibility to shape to various environments. It is more resistant to cold and heat than many plastic materials.

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Common Applications of Fishpaper

Fishpaper’s combination of qualities means it is fit for the production of electrical insulation products, such as armature slot insulation and circuit breakers. Fishpaper is also found in:

Fishpaper & Vulcanized Fibre | ESPE Manufacturing