Fiber-reinforced structural foam

AIREX® PXw 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 evenly distribute continuous fiberglass filaments with mesh in the foam. This creates a product with increased bending resistance and rigidity, which enables utilization with and without face sheets. The foam is dimensionally stable, maintains stiffness even when subjected to moisture and is resistant to chemicals and high temperatures.

AIREX® PXw is an ideal core material for static applications requiring a high level of rigidity or as a substitute for wood and plywood.



  • Self-contained product – no face sheet required
  • High bending resistance and rigidity
  • 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: transoms, bulkheads, stringers, engine bases, floors, cover panels, local reinforcements, tools and molds
  • Rail and automotivefloors, sidewalls, roofs, motor covers, cover panels
  • Industry: covers, containers, tanks, vessels, tools and molds, concrete casts, construction signs, bathtubs and shower cabins


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

Related products


Fiber-reinforced structural foam

Advantages: six-glass reinforced urethane panel.