PORON AquaPro Series Polyurethanes deliver long term performance. PORON® AquaPro® 4701-37 and PORON® AquaPro® 4701-37 thin foam provide various thicknesses of enhanced water protection. PORON® AquaPro® 4701-41 foam offers greater closed-cell content for demanding vacuum sealing applications or low closure-force requirements.


  • Thermally stable from 40°C to 90°C (-40°F to 194°F) for constant use and up to 120°C (248°F) for intermittent use
  • Flame Retardant- UL94 HBF and FMVSS 302 rated
  • Thicknesses available 0.15 - 12.7mm (.006 to .5 in)


  • Environmentally safe, with low outgassing
  • Provides reliable and durable water sealing capabilities
  • Chemical resistant to exposure to a wide range of common automotive fluids
  • Durable, long-term performance



Explore our calculators, conversion tools, technical papers and more.

Need a Sample?

Samples can be requested through our online request system.


Elastomeric Material Solutions

Find local representatives for personalized support.