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PORON®

Offering a broad range of design solutions for gasketing, sealing, and energy absorption.

Why We Work With PORON®

PORON® cellular urethane foams offer a broad range of design solutions for gasketing, sealing, and energy absorption. Through a unique manufacturing process, PORON® materials can be formulated in a wide range of firmnesses and a variety of densities within each formulation. PORON® foam and PORON® sponge is supplied in continuous rolls and can be easily fabricated through die-cutting, slitting, machining and laminating.

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Key Benefits

Excellent Resistance to Compression Set

High-Energy Absorption

Low Out-Gassing

Resistant to Temperatures

Bondable Surface

Low Hydrolysis

No Plasticizers to Migrate

High Internal Strength and Dimensional Stability

PORON® cellular urethane foams

PORON® 4701-30 Very Soft

Very soft, easily compressed for use where flexibility is a key requirement. Standard available thickness range from 0.021"

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PORON® 4701-40 Soft

Soft material for a wide variety of applications. Standard available thickness range from 0.031" to 0.500" (0.79 mm to 12.7 mm).

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PORON® 4790-92 Slow Rebound

Extra soft, slow rebound with a very low closure force. Standard available thickness range from 0.021" to 0.500" (0.53 mm to 12.7 mm).

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PORON® 4701-50 Firm

Firm material used for managing high energy impact with gasketing needs. Standard available thickness range from 0.012" to 0.500" (0.30 mm to 12.7 mm).

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Quick Reference Chart

Poron Number
Density (psi)
Thickness (inches)
Deflection (psi)
Durometer ("O")
Temperature (F)
UL 94 Rating
Datasheet
Poron Number: 4701-30
Density (psi): 15
Thickness (inches): .188 to .500
Deflection (psi): 1 to 5
Durometer ("O"): 3
Temperature (F): 194
UL 94 Rating: HBF (.188")
Poron Number: 4701-30
Density (psi): 20
Thickness (inches): .062 to .125
Deflection (psi): 3 to 8
Durometer ("O"): 8
Temperature (F): 194
UL 94 Rating: HBF (.093")
Poron Number: 4701-30
Density (psi): 25
Thickness (inches): .031 to .045
Deflection (psi): 5 to 12
Durometer ("O"): 16
Temperature (F): 194
UL 94 Rating: HBF (.062")
Poron Number: 4701-40
Density (psi): 15
Thickness (inches): .188 to .500
Deflection (psi): 4 to 8
Durometer ("O"): 12
Temperature (F): 194
UL 94 Rating: HBF (.188")
Poron Number: 4701-40
Density (psi): 20
Thickness (inches): .062 to .125
Deflection (psi): 7 to 13
Durometer ("O"): 17
Temperature (F): 194
UL 94 Rating: HBF (.062")
Poron Number: 4701-40
Density (psi): 30
Thickness (inches): .031 to .045
Deflection (psi): 15 to 40
Durometer ("O"): 34
Temperature (F): 194
UL 94 Rating: **
Poron Number: 4701-50
Density (psi): 15
Thickness (inches): .188 to .500
Deflection (psi): 8 to 14
Durometer ("O"): 18
Temperature (F): 194
UL 94 Rating: HBF (.188")
Poron Number: 4701-50
Density (psi): 20
Thickness (inches): .062 to .125
Deflection (psi): 13 to 23
Durometer ("O"): 24
Temperature (F): 194
UL 94 Rating: HBF (.062")
Poron Number: 4701-50
Density (psi): 30
Thickness (inches): .031 to .045
Deflection (psi): 30 to 60
Durometer ("O"): 55
Temperature (F): 194
UL 94 Rating: **

PORON® material is valuable for cushioning, shock absorption, sealing and more. PORON® urethane has applications in things like manufacturing and machinery. For OEMs and similar businesses, products like a PORON® gasket, PORON® cellular urethane foam and other industrial applications are unrivaled. This is because PORON® ably meets things like flammability requirements and has low outgassing, high density and no residual chemicals.

PORON® is also valuable for commercial use and in products people use every day. Because of its composition, PORON® can be used for things like custom orthotics and adhesive backing. Its density and pliability make it an ideal cushioning material. It is often used in footwear as a shoe insole.

PORON® is a great fit for many applications. Contact us to learn more about the many ways you can purchase standard and custom PORON® products.

QUESTIONS? OUR TEAM HAS ANSWERS.

With over 40 years of growth we have one of the most comprehensive arrays of advanced processes in the industry.

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