What does it mean: FRP, XPS, pultrusion ?
FRP - Fiberglass Reinforced Plastic, glass fibre reinforced plastic. Composite material: resin + glass fibre.
XPS - Extruded Polystyrene, extruded polystyrene foam. Effective insulator.
Pultrusion - technology of composite profiles production: resin with reinforcing fibre is drawn through a die and polymerised. The result is a strong, lightweight profile of any shape.