Porex® Porous Polymer and Sintered Plastic Solutions

Genuine Porex® materials offer uncompromising performance for a variety of scientific, medtech, electronic, 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 filtering, wicking, venting, muffling, diffusing, and membrane support. Porex® creates high value porous materials that enable our customers’ products to do something new, something better, or at a lower cost.

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

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Die Cutting Tolerances and Tooling Considerations

Tight tolerances are achievable with precision die cutting, but product designers may need to balance tolerances with costs.

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Pore Size/ Pore Volume

All Porex® materials contain an intricate network of open- celled, omni directional pores that are distributed consistently throughout the media for a unique combination of diffusion, wicking, filtering, and venting capabilities. When reviewing Porex® material specifications, keep in mind that:

  • 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

Sintered Polyethylene

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

Sintered Polypropylene

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

Porex® Fabrication

Interstate Specialty Products can use precision die cutting or digital knife cutting to fabricate Porex® components according to your specifications. To learn how we can bring your unique components to life and help you reach your design goals, 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.

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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