PORON® Urethane Foam

CB Frost are a preferred UK convertor of the Poron Urethane range of materials and have a relationship with Rogers corporation extending over 30 years.

Poron Urethane offers the flexibility required by designers to solve their pressing problems, from a gasketing, cushioning and sealing perspective.

A semi-closed cell material with excellent compression set resistance, low outgassing and non-fogging properties provides sealing solutions in a wide range of industries and applications.

PORON® Urethane Foam thicknesses

Anything from 0.3mm up to 12.7mm

Specification Typical Values
Polymer: Urethane
Structure: Semi-Closed Cell
Colour: Black
Temp: -40/+90 °C

**Data as per our current stock grade

Fire Classification  


Typical applications include lighting (dust and water ingress seals; non-fogging), automotive (door panel seals), electronic devices and communications.

PORON® 4701-30 Polyurethane 

  • Very soft and easily compressed material
  • For use in flexible gasketing, gap filling and spring applications
  • Thickness range from 0.031" to 0.500" (0.79 mm to 12.7 mm)

PORON® 4701-40 Polyurethane 

  • Soft material
  • For wide variety of gasket and gap filling applications
  • Thickness range from 0.031" to 0.500" (0.79 mm to 12.7 mm)

PORON® 4701-50 Polyurethane 

  • Firm material for managing high energy impact
  • For use in gasket design
  • Thickness range from 0.031" to 0.500" (0.79 mm to 12.7 mm)

PORON® 4701-60 Polyurethane 

  • Very firm material for energy management solutions
  • For use in gasketing, spacers, bumpers and footpads
  • Thickness range from 0.031”to 0.250” (0.79 mm to 6.35 mm)

PORON® 4790-92 Polyurethane

  • Extra soft material
  • Slow rebound and very low closure force
  • Thickness range from 0.021" to 0.500" (0.53 mm to 12.7 mm)

PORON® 4790-79 Display Back Pad 

  • Multiple densities available for varying designs
  • For use in cushioning and shock absorption for device displays

PORON® AquaPro® Series Foams 

  • Includes products 4701-37 & 4701-41
  • Water sealing capabilities
  • Provides long-lasing protection
  • Thickness range from 0.15 - 12.7mm (.006 to .5 in)

PORON EVExtend® Material 

  • Designed specifically for use in EV/HEV applications
  • Excellent compression set
  • Thickness range from 0.039" to 0.118" (1 mm to 3 mm)

PORON® ShockPad Foam

  • Provides outstanding impact protection
  • Enables thinner than ever designs
  • Excellent compression set resistance

PORON® ShockSeal™ Foam

  • Conforms to some of the smallest and most intricate designs.
  • Excellent for impact protection
  • Ideal for thinner, larger LCD displays for cushioning, sealing and protection requirements
  • Available as thin as .5mm

PORON® V-0 Foam

  • Meets both UL94 V-0 and HBF flammability ratings
  • Excellent long term performance


  • Excellent compression set resistance

  • Low out gassing

  • UL94 approved

  • Good chemical resistance

Manufacture Capabilities:

  • Gaskets

  • Strip

  • Washers

  • Sheeting

  • Fabrication

Our Partners

Dependable on-time
Full lot traceability on
raw material
Rapid lead times on tooling
and products
Manufacturing services from 1-off
to mass production
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Office Hours

Monday to Thursday
8.00am to 4.35pm
Friday - 8.00am to 1.00pm

Get in touch

Unit C1, Matrix Point, Mainstream Way, Nechells, Birmingham: UK: B7 4SN