Buna-N Foam


EMCO Industrial Plastics carries Buna-N, also known as Nitrile, foam available in strip, sheet, roll, or custom gasket forms. Buna-N displays excellent strength and is the standard choice when oil resistance is required. This material also resists water and mild chemicals. Commonly found in applications related to automotive, engines, fuel systems, marine, and oil and gas. Available in closed cell, with pre-applied single or double-sided Acrylic Adhesive backing options, and a smooth finish.

Our Buna-N materials are available in thicknesses of 1/16” to 1”, including all standard iterations of inch and metric thickness measurements across this range. Continuous strips, rolls, and sheets are available in any width from 1/8” to 36”, and lengths up to 30’. In-house CNC gasket cutting, machining, and waterjet cutting capabilities promote tight tolerances, repeatable accuracy, and rapid part development across our entire Buna-N offering.

Material Highlights


  • Excellent strength
  • Oil resistant
  • Good UV resistance
  • Restricts absorption of water, air, and gas

Material Grades


Standard Made of industrial grade materials for general purpose use.

Cell Types


Closed Cell Prevents liquids and gasses from passing through.

Firmness


Extra Soft 0 to 4 psi
Soft 5 to 8 psi
MaterialsCell TypeGradeFirmnessColorTextureCompression
Deflection
@ 25%
DensityTensile StrengthTemp RangeSpecifications
Buna-N Buna-N displays excellent strength and is the standard choice when oil resistance is required. This material also resists water and mild chemicals. Commonly found in applications related to automotive, engines, fuel systems, marine, and oil and gas.
BSR Closed Cell Standard Soft (5 - 8 psi) Black Smooth 7 psi 17 lbs / cu. ft. 100 psi -40° to 200° F ASTM D1056 2B2, FMVSS-302
BSR-S Closed Cell Standard Extra Soft (0 - 4 psi) Black Smooth 3 psi 14 lbs / cu. ft. 70 psi -40° to 200° F ASTM D1056 2B1, FMVSS-302
Pre-Applied Adhesive EMCO Plastics offers pre-applied adhesive to all foam materials. Options include single or double-sided application and a lined backing.
  Temperature Range Adhesive Material Thickness Shelf Life
Acrylic Adhesive -30° to 250° F Acrylic 1.3 Mils. 18 Mo. from Application
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