Fiber-reinforced structural foam

AIREX® PXc is a closed-cell, fiber-reinforced urethane foam with special formulation that offers significant advantages in comparison to conventional sandwich core materials. A special manufacturing process is used to distribute continuous fiberglass filaments evenly in the foam. This creates a very smooth product with excellent compressive and shearing properties. The foam is dimensionally stable, shows low water absorption and is resistant to chemicals and high temperatures.

AIREX® PXc is an ideal core material for sandwich elements subjected to high stress loads or as a substitute for wood and plywood.



  • Excellent shear and compression properties
  • Replacement for wood and plywood
  • Excellent screw pullout strength
  • High temperature resistance
  • Compatible with a broad range of resins and adhesives
  • Dimensionally stable
  • High styrene resistance
  • Very low water absorption
  • Non-decomposable
  • Excellent chemical resistance


  • Ship and boat construction: transom, bulkhead, stringers, engine bases, floors, cover panels, local reinforcements, tools and molds
  •  Rail and automotive: floors, sidewalls, roofs, motor covers, cover panels
  • Industry: covers, containers, tanks, vessels, tools and molds, reinforcements, construction signs, sporting equipment


  • Lamination processes (hand / spray)
  • Resin infusion / injection (VARTM / RTM)
  • Adhesive bonding
  • Prepreg processing
  • Molding processes (GMT, SMC)

Related products


Fiber-reinforced sheet of structural foam

Advantages: six-glass reinforced urethane panel.