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Die cut fiber gaskets

Die Cut Fiber (Fibre) Gaskets

Custom Gasket Mfg. is a recognized leading manufacturer of high quality fiber gaskets, seals, washers, and custom fiber products. Our company’s reputation for excellence has been built on our ability to provide our valued customers with the most effective designing, engineering and manufacturing solutions to meet their most demanding applications. Our main objective is to continuously exceed our customer’s expectations by providing them with high performance gaskets and sealing products, competitive pricing, on-time delivery and exceptional customer service.  Custom Gasket Mfg. maintains a modern manufacturing facility along with knowledgeable, technically-oriented professionals enabling us to consistently meet all of your blueprint specifications and tolerance requirements.

Die cut fiber gaskets

Custom Gasket Mfg. has over forty years experience specializing in the manufacturing of precision, die cut fiber gaskets, seals and washers.  We fabricate die cut products and gaskets using a wide variety of fiber materials such as; cellulose fiber, cellulose fiber blended with rubber binders, insulating fiber, synthetic fiber, vegetable fiber, vulcanized fiber, fish paper and many other premium fiber-based materials.  Custom Gasket Mfg. provides full production capabilities from prototype and short run quantities through large production runs.  Custom Gasket Mfg. will cut your custom fiber gaskets to your specific dimensions.  We are able to consistently produce custom die cut fiber gaskets to ensure that they meet all of your requirements and tolerances.

Custom Gasket Mfg. maintains a full line of fiber gasket materials.  Fiber materials are available in a broad range of thicknesses, hardness, and colors.  The materials most frequently used include:

  • Vegetable Fiber (Detroiter)
  • Cellulose Fiber Beater Addition
  • Cellulose/Synthetic Rubber Beater Ad
  • Cellulose/Nitrile Rubber Beater Ad
  • Non-Asbestos NBR Aramid Fiber
  • Fish paper
  • Vulcanized Fiber
  • Fiber-Kork®
  • Nomex®
  • Branded Vellumoid®
  • 505 Fiber®
  • 444 Fiber®
  • Velbuna®
  • Vellutherm®
  • Victopac®
  • Velcar B-10®
  • Bucote®
  • Nicote®
  • Lexide
  • Cellulose Accopac®
  • ImpervapacTM 
  • Thermo-Tork®
  • Synthseal®
  • Hydro-Fused®

Vegetable Fiber Gaskets (Plant Fiber Gaskets)

Custom Gasket Mfg. fabricates a variety of die cut parts and gaskets from vegetable (plant) fiber materials.  Vegetable Fiber is a treated cellulose fiber material impregnated with protein glue and a glycerin binder.  It is commonly referred to as Detroiter.  This material works well for a wide range of sealing applications where temperatures can reach 250˚F.  It is strong and flexible, resists heavy pressure and is compressible.  It is used most often in industrial, chemical, petroleum, petrochemical and automotive industries.  Vegetable fiber is chemically treated to be resistant to oils, water, alcohol, grease, air, gas, gasoline and other solvents.  It is available in a variety of thicknesses ranging from 0.006” to 0.187” thick.  From engineering to design and tooling, to die cutting and fabrication, Custom Gasket Mfg. has the capabilities to meet the tightest tolerances and the highest quality standards.

Vulcanized Fiber Gaskets

Custom Gasket Mfg. fabricates custom vulcanized fiber gaskets, seals, and washers using our die cutting, punching and stamping capabilities.  Vulcanized fiber is a hard, durable, chemically pure cellulose product that contains no resin or bonding agents.  Vulcanized fiber is made between .0078" and .375" thick.  It is produced in several grades and colors.  The electrical grade of vulcanized fiber is referred to as fish paper.  Vulcanized fiber has superior flatness, high mechanical strength, and excellent resistance to heat and cold.  It is light weight, has excellent tear resistance, and can be machined with standard tools.  It can be machined, punched, slit, threaded, formed, molded and wound into tubes for literally countless applications.

Vulcanized fiber can be used for washers, insulating plates, switch and appliance insulation, electric motor insulation, gaskets, automobile parts, luggage, patterns, and many other applications.

Vulcanized Fiber is also sold under trade names: Vulcanex® and Forbon®.

Fish Paper Gaskets (Electrical Grade)

Fish paper is a strong paperboard insulation used primarily for its excellent electrical insulating properties.  Fish paper is the name for the electrical grade of vulcanized fiber.  Its unique properties include that it is lightweight, and very easy to form and punch.  It is great for gasket applications, washers and spacers.  Fish paper is used extensively for electrical insulation applications due to excellent arc resistance.  It is also non-magnetic and resistant to solvents, oils, grease, corrosion, wear and abrasion.  Fish paper is machine-able without splintering, ripping or cracking.

Fish paper applications include: electrical appliances, instruments and insulators, washers, electrical devices, gaskets, fuse tubes, slot insulations, arc shields, coil insulations, insulation washers, circuit breakers, bushings for motor contacts and lightening arresters.

Custom Gasket Mfg. manufactures fish paper gaskets cut to your exact specifications.

Cellulose Fiber / Synthetic or Nitrile Rubber Binder Gaskets

Custom Gasket Mfg. fabricates die cut gaskets from a variety of (non-asbestos) cellulose fiber gasket materials that are bounded with blended synthetic or nitrile rubber binders. These exceptional cellulose fiber rubber binder gasket materials are produced by the beater-addition process. In general this line of gasket material demonstrates good fluid resistance, mostly against cold and warm oils, fuels, water, and anti-freeze. They also exhibit good dimensional stability and flexibility. The selection of styles we carry vary in characteristics such as density, swelling, fluid absorbency, and compressibility. The main industries for these materials are automotive, truck and engine construction. Cellulose fiber rubber binder gaskets materials have a maximum service temperature range of 350°F.

Custom Gasket Mfg. fabricates custom gaskets from well-known gasket material brands Vellumoid, Inc. & Interface Solutions Inc. Products.

Please visit our gasket materials page for more information on our extensive selection of materials. 

For more information on custom fiber gaskets and seals or to speak with one of our knowledgeable professionals, please feel free to Contact Us or complete our online Request For Quote form.

Call 800-985-6750 or email your inquiry to sales@customgasketmfg.com