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1-800-GASKETS (427-5387)
info@auburn-mfg.com

29 Stack Street Middletown Connecticut (US) 06457 United States

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PORON® FOAM
MICROCELLULAR POLYURETHANE

Poron® micro-cellular polyurethane foams offer a broad range of design advantages for those engineers who are involved with gasketing, sealing, energy absorbtion or cushion-gasket applications. Poron® Foams have excellent compression-set resistance and high resilience, providing a gasketing seal that won't break down over extended use. Poron® foams are conformable and flexible even under extreme environmental conditions. Poron® is low out gassing and flame retardant (UL-Listed). Poron® is significantly less expensive than silicone and can replace silicone in many applications in which a low-compression set, low out-gassing, and flame retardant material is required. Poron® foams are exceptionally easy to die-cut or water-jet cut. The surface of Poron® is smooth, cosmetically appealing and ideal for having adhesives applied. Typical applications for Poron® include; cellular telephone gasketing, electrical enclosures, electronic gasketing, vibration damping, cushioning pads, acoustical control gasketing and automotive gasketing.

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Poron

Standard Products and Adhesive Backings (Optional)

Our general purpose Poron® Foam (Microcellular Polyurethane) is available in four grades of compressibility, determined by compression deflection. Poron® 4701-30 is very soft, easily compressed and often used where flexibility is a key requirement. Poron® 4701-40 is soft and good for use in a wide variety of applications. Poron® 4701-50, firm grade, is often used in applications where there is a substantial amount of energy to be absorbed. Poron® 4701-60 is very firm like solid rubber and can withstand much greater compressive force than ordinary foam. Two additional Poron® Foams are now available from Auburn. Poron® 4790-92 is extra soft, slow rebound foam with the lowest closure force of any Poron®. Poron® 4701-41 has a closed-cell foam structure and is designed to provide enhanced sealability. Vacuum-enclosure applications, for example, will require this material. All Poron® Foam is now available with or without adhesive. Auburn's adhesive backings can be applied to one or both sides.

Product Benefits

  • Excellent compression set resistance which enables durable, long-term performance for gasketing, sealing, and cushioning.

  • Low-outgassing and non-fogging, containing no plasticizers or residual chemicals to contaminate the device. The material will not become brittle and crumble and is non-corrosive to metal.

  • Inherently flame retardant without the use of additives. Many of the materials meet flammability requirements of UL HBF and MVSS 302.

  • Engineered urethane formulations offering a wide modulus range - 2-90 psi @ 25% deflection - for more design versatility requirements.

  • Excellent performance over broad temperature range (-40®C to 90®C) with good chemical resistance.

  • Easy to fabricate, die-cuts cleanly, and readily accepts adhesive without surface preparation. Available in a variety of colors.

Ordering Information & Special Orders

Auburn can die-cut, water-jet cut, slit to width, laminate and apply adhesive to all Poron® Foam products. Auburn can supply Poron® in sheets, rolls or custom parts. All Poron® Foams can be supplied either plain (no adhesive) or with an adhesive backing applied to one or both sides. For additional technical assistance, material recommendations, samples and/or price quotations, please contact your Auburn Customer Service Representative.

Read about our Adhesive Program