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Pressboard

Pressboards are layers of paper that have been compressed by a combination of heat and pressure to form the layers into a dense material. This compressed material is ideal for Oil-Filled Transformers, Mobile Transformers, Traction Transformers, and much more. Pressboards are available in different levels of density including rigid, low-density, medium-density, and high-density. These boards are available in a variety of different materials including Aramid Board, Fiber Electrical Kraft Pulp, T-IV, Form-Val, and Hi-Val.

EIS supplies Pressboards from top suppliers Cottrell Paper Company, DuPont Corporation, and Weidmann Electrical Technology.

Displaying 1 - 8 of 8 products found
  • DuPont Nomex® 994 Rigid Pressboard

    Multiple item options available
    Mfr ID: Nomex® 994
    Type 994 is a densified, rigid board which has a unique combination of superior resistance to compression, even at elevated temperatures, along with relatively high oil absorption characteristics. This combination results in a product which is especially useful as spacers or other structural components in liquid-filled systems. With a specific gravity ranging from 1.1 to 1.2.

    In Stock

  • Cottrell Paper Low-Density Pressboard

    Multiple item options available
    Mfr ID: PBRDLD
    Pressboard (LD) manufactured by Cottrell Paper Company Cottrell Pressboard - This material is made from 100% virgin fiber electrical Kraft pulp. The stock is extensively cleaned and specially refined to insure maximum purity and physical strength. No sizing, clay, fillers, or other chemical additives are used.

    In Stock

  • Weidmann Electrical High-Density Pressboard, 83" x 42" x 0.188"

    ID: PBRDTIV.18881
    Mfr ID: PBRDTIV.18881
    Laminated Board is manufactured according to the IEC standard 60763-3-1, Types LB3.1.1 and 3.1.2 at the Rapperswil plant in Switzerland. The resins used are casein and polyester. Casein is an aqueous and polyester resin a non-aqueous glue. We strongly recommend polyester resin glue for thicknesses >30.0 mm. When using casein glue for a thickness >30.0 mm, cracks can appear due to the increased water content.

     

  • DuPont Nomex® 993 Medium-Density Pressboard

    Multiple item options available
    Mfr ID: Nomex® 993
    Type 993 is a medium-density pressboard which offers a balance of rigidity and conformability along with outstanding saturability and excellent properties in air and oil.

    In Stock

  • Cottrell Paper High-Density Pressboard

    Multiple item options available
    Mfr ID: PBRDHD
    Pressboard (HD) manufactured by Cottrell Paper Company Cottrell pressboard - This material is made from 100% virgin fiber electrical Kraft pulp. The stock is extensively cleaned and specially refined to insure maximum purity and physical strength. No sizing, clay, fillers, or other chemical additives are used.

     

  • Weidmann Electrical Low-Density Pressboard

    Multiple item options available
    Mfr ID: PBRDFV
    Form-Val is manufactured at the St. Johnsbury plant in Vermont/USA according to standard of ASTM D4063, Type 2.2.1. Form-Val can be classified as a low-density material.

    In Stock

  • DuPont Nomex® 992 Low-Density Pressboard

    Multiple item options available
    Mfr ID: Nomex® 992
    Type 992 is a low-density pressboard which is designed for applications requiring a combination of electrical, mechanical and forming characteristics, such as barrier, gap spacers, end fillers, core tubes, and coil yokes. Nonelectrical applications include thermal barriers and gaskets.

     

  • Weidmann Electrical Medium-Density Pressboard

    Multiple item options available
    Mfr ID: PBRDHV
    Hi-Val is manufactured at the St. Johnsbury plant in Vermont/USA according to standard of ASTM D4063, Type 2.2.1. Hi-Val can be classified as a medium-density material.

    In Stock