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Fish Paper  Vulcanized Fiber

Fish paper – or Fishpaper – is a type of fibrous dielectric paper known for its unique combination of strength, ease of forming and punching.  Fishpaper is also unique because it is more resistant to heat and cold comparable plastic materials. Electrical-grade Fishpaper is a vulcanized fiber material that is frequently used for electrical insulation and is commonly die cut to create unique parts for specific applications. Vulcanization is a chemical process that transforms rubber or other polymers into more durable materials via the addition of accelerators or curatives.

Key Fishpaper Characteristics

Fishpaper contains various properties that make it well-suited for use in the manufacturing of electrical insulation materials. It offers high mechanical strength and greater resistance to extreme temperatures than most types of plastic materials. Fishpaper is also extremely light – it’s approximately half the weight of aluminum, which makes it an excellent choice for applications where reducing weight is essential for ensuring peak product performance and maximizing fuel efficiency.

Other valuable characteristics include excellent tensil strength and good arc resistance and the ability to be machined easily with traditional tools – you cannot machine Fishpaper. While the material is often sold in the form of sheets, it can also be found in coils or rolls that facilitate automatic punching.

Typical Fishpaper Applications

In addition to being used to manufacture electrical insulation, examples of other applications of electrical grade fishpaper include:

  • Electrical instruments
  • Appliances
  • Various automotive parts and components
  • Electronic devices
  • Fuse tubes
  • Circuit breakers
  • Gaskets
  • Motor contact bushings
  • Railroad track insulation

American Micro Industries: Your Headquarters for High-Quality Vulcanized Fiber Sheet Fishpaper

American Micro Industries can provide sheet stock and custom made fishpaper parts for companies in industries such as automotive, aerospace, defense and medical. Our fishpaper is extremely durable and is available both in sheet stock and custom die cut parts. We are experts in the field of die cutting and fabricating custom fishpaper components. We take extreme pride in our ability to provide high-quality fishpaper parts, used frequently in electrical devices, enclosures and a variety of other electrical applications. We sell stock fishpaper (vulcanized fiber) sheets and manufacture laser cut fishpaper components as well.

Die Cut Fishpaper

Our vulcanized fiber sheet die-cutting methods can create custom fishpaper parts for your unique applications. We can work with your drawings, blueprints or specifications to develop a superior product that will exceed your performance and durability expectations.

Our die-cutting techniques include rotary die cutting, which is normally the best option for producing components such as gaskets and many types of automotive parts, and steel rule die cutting, which offers an extremely cost-effective procedure for mass-producing custom die components. We can also perform highly advanced fishpaper insulator laser cutting, which is the best choice for complex or high-precision components.

The American Micro Industries Advantage

When you choose American Micro Industries for your fishpaper insulation needs, you are served by an experienced, quality-driven manufacturer of made-to-order parts and components. We make achieving customer satisfaction our No. 1 goal, and we take pride in our ability to provide those hard-to-find parts many of our competitors are unable to offer. You will also appreciate our fast project turnaround times and on-time delivery, which will help keep your manufacturing projects on track. What’s more, we stand behind every product we sell and we’ll do whatever it takes to resolve any issues as quickly as possible.

Get Your Custom Fishpaper Insulation Project Started Today

Take the first step toward getting the high-quality fishpaper parts and components you need for your unique electrical insulation applications. If you have questions or would like more information about our fishpaper products and services, give us a call at 1-866-765-9191 today. Feel free to send us your drawings & specifications at sales@americanmicroinc.com for a custom quote

Fish Paper is available in:

  • Sheet Material - 24 in. x 36 in. Sheets, untrimmed
  • With or without PSA (Pressure Sensitive Adhesive)
  • Custom Die Cut Parts

Vulcanized Fiber/Fishpaper Specifications:

  • NEMA VU-1, Superseded by ASTM D-710
  • MIL-F-1148
  • MIL-I-695
  • MIL-F-10336
  • MIL-F-13526
  • JIS-C2315

Our Vulcanized Fiber/Fishpaper is UL recognized, and rated UL94 HB

No Minimum Order  -  Low Tooling  -  Fast Turn Around


Fish Paper - 24" x 36" Sheet Stock

FP005 0.005"
FP007 0.007"
FP010 0.010"
FP015 0.015"
FP020 0.020"
FP025 0.025"
FP031 0.031"
FP040 0.040"
FP047 0.047"
FP062 0.062"
FP005 w/PSA 0.005"
FP007 w/PSA 0.007"
FP010 w/PSA 0.010"
FP015 w/PSA 0.015"
FP020 w/PSA 0.020"
FP025 w/PSA 0.025"
FP031 w/PSA 0.031"
FP040 w/PSA 0.040"
FP047 w/PSA 0.047"
FP062 w/PSA 0.062"