As with other porous materials such as foams and sponges, POREX® Porous Plastics are composed of pores whose cavities are connected to one another, permitting fluidic communication throughout the part.

Porex manufactures porous plastic products from various thermoplastic materials exhibiting a broad range of properties. Ultra-high molecular weight polyethylene (UHMWPE), high-density polyethylene (HDPE), polypropylene (PP), polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF) are our most common base materials. Ethylene vinyl acetate (EVA), polyethersulfone (PES), polyurethane (PU) and PE/PP co-polymer are also frequently used.

Our lightweight materials are moldable for high volume economies and offer easy fabrication or conversion to different forms. Large sheets, rolls, or other material formats can be provided or sized to specification.

Polyethylene
  • most commonly used plastic in the world
  • strong, lightweight, tough
  • resistant to concentrated acids, alkalis, many organic solvents

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Polypropylene
  • resilient and resistant to fatigue
  • highly resistant to most acids and alkalis
  • can be subjected to steam sterilization

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Polyvinylidene fluoride
  • withstands exposure to harsh thermal and chemical conditions
  • unaffected by long-term exposure to ultraviolet radiation
  • hard and low weight with high abrasion resistance

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Polytetrafluoroethylene
  • chemically inert with high tensile strength
  • thermally resistant (500°F / 260°C continuous use)
  • can be subjected to steam and EtO (ethylene oxide) sterilization

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Ethyl Vinyl Acetate
  • extremely elastic yet tough
  • competitive with rubber and vinyl in many electrical applications
  • good clarity and gloss with little or no odor

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Other Porous Plastics
  • polycarbonate and polycarbonate alloys
  • nylon 6
  • thermoplastic polyurethane (TPU)
  • polyethersulfone (PES)
  • composites and additives

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