Foaming Expands Possibilities for Wood-Fiber Composites Over a dozen processors already foam wood-fiber composites and an equal number are experimenting with it. Foaming with wood cuts resin cost and weight in half and brings design advantages. But it also requires particular know-how in materials formulation and extrusion hardware.
Extrutech International licenses a technology package that includes designs
for two- and three-layer crosshead dies to produce foamed wood-composite profiles.