Genuine Porex® materials offer uncompromising performance for a variety of scientific, medical, electronics, and consumer applications.

Interstate Specialty Products is a Manufacturing Partner and Distributor that carries the full line of Porex® materials. These porous plastics and polymers are available with controlled pore sizes for filtered, wicking, venting, muffling, diffusing, and membrane support. Porex® creates high value porous solutions that enable our customers’ products to do something new, something better, or at a lower cost.

At our custom fabrication facility in Sutton, Massachusetts, we can convert Porex® sheets, rods, and tubes to your precise geometry. Our Made in the USA manufacturing company has extensive experience in Porex® fabrication.

Pore Size/ Pore Volume

An intricate network of open- celled, omni directional pores that provide consistency throughout the media for a unique combination of diffusion, wicking, filtering, and venting capabilities.

  • Porex® Porous Plastic structures are all representative of Open Cell Porous Materials
  • Pore size is the average size of the voids in the Porous Media
  • Pore Volume is the percentage of the material’s air volume at total volume

Porous Polyethylene

  • Pore Sizes: 7 micron- 300 micron
  • Tensile strength up to 20N/mm2
  • Resilient and resistant to creep and fatique
  • Highly resistant to move acids and alkalis
  • Resistant to most organic solvents below 176F
  • Suitable to use at temperatures from 200F up to 300F

Porous Polypropylene

  • Pore Sizes: 100 micron to 300 micron
  • Resilient and resistant to creep and fatique
  • Low elongation makes the products rigid and stiff
  • Suitable to use at temperatures from 200F up to 300F

Porex® Fabrication

Interstate Specialty Products die cuts Porex® materials and also has digital knife cutting capabilities. To learn how Porex® fabrication supports your application, contact us on-line or call (800) 984-1811.

*Properties and applications shown throughout this website are typical. Your specific application should not be undertaken without independent study and evaluation for suitability.

Made in the USA

For over 50 years, Interstate has been producing die cut parts at our Made in the USA manufacturing facility in Sutton, Massachusetts. View the die cut products section below for more information, and please contact us with your questions.

Porex® Sheets

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Porex® Standard Tubes

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Porex® Rods

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Porex® Vents

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Porex® Virtek

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