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High Performance Sealing Solutions for Die-cut Gaskets, Seals, Insulators and Bushings

Cellulose Accopac® from Auburn comprises a family of gasket materials that combines cellulose fibers with synthetic rubber binders to produce products whose chemical resistances are superior to pure cellulose-fiber gasket materials. These products are ideal for light- to medium-duty applications where compressible gasket material is required. Cellulose Accopac® products are pliable, flexible, bendable, and easy to die cut into specific gasket shapes. Typical usages for Cellulose Accopac® involve die cut gaskets used for water pumps, marine equipment, gasoline engines, oil seals, dust seals, shims and bushing applications.

Standard Products

CS-301 from Auburn has a controlled-swell styrene butadiene rubber binder. It is intended for use in applications involving die cut gaskets with water, high analine point oil, and other application not including aromatic fuels and certain solvents, and with shot duration maximum temperatures up to 180°C (350°F)

CN-705 from Auburn is a low-density nitrile butadiene bound material that is suitable for die cut gaskets used with oil, gasoline or water. It is intened for use in applications with short duration maximum temperatures up to 180C (350F).

RN-8011 from Auburn is a low-density, cellulose fiber material with high rubber filler content and a nitrile butadiene rubber binder. It provides excellent sealability for oil and water at low flange preassures, and is used for die cut gaskets for engines, transmission pans, water pumps, and environmental seals. It is intended for applications with short duration maximum temperatures up to 180°C (350°F). RN-8011 has a UL component recognition.

Adhesive Backings

Auburn is capable of taking any Accopac® material and applying adhesive to one or both of its surfaces. Auburn adhesives are available for both raw materials and finished die cut gaskets including die cut shims, washers, spacers, gaskets and seals. Auburn works with dozens of popular adhesives including:

 The use of adhesives has many distinct advantges that include eliminating the messy job of cementing during assembly operations, assuring a uniform amount of adhesive per part, and reducing labor time in assembly operations.

Material Availability

Cellulose Accopac® is available in many standard thicknesses - .010", .015", .031", .047", .067" and master rolls that are 40" wide. These products can be further supplied in a variety of forms that include continuous length roll, sheets, precision strips, slit-to-width rolls, and custom die cut gaskets.

Manufacturing Method

Auburn can manufacture a precision gasket using a number of production methods. For a very complex part that involves a low quantity requirement, we ordinarily use a water-jet cutting method as the preferred choice in order to eliminate the need for a costly tool.

  • Steel rule die cutting

  • Water-jet cutting

  • Rotary die cutting

  • Kiss-cut die cutting

  • Quick set-up hydraulic-press die cutting

  • Prototype or sample lot die cutting


For a simple part such as a plain die cut washer, a disc, a rectangular pad or a uniform-width strip, a house-tool is very often available at no additional cost. For a more complex part that requires a tool, a steel rule die is built. A steel rule die’s cost is usually quite minimal ($95.00-$125.00 range) and its production time is ordinarily only 1 or 2 days, at which time a first article sample is sent to the customer for a final approval.

Ordering Information and Special Orders

Please contact your Auburn Customer Service Representative to learn more about these products or to obtain material recommendations, product samples, design ideas, or price quotations for either raw materials or custom die cut gaskets.