SphereCel core materials are made of non woven textiles that are volumized with thermoplastic microspheres. There are different types in 1.2 – 12 mm thickness that are commonly used in open and closed mold processes. SphereCel products are suitable for making fiber reinforced components from 4-30 mm thickness; both flat or of complex geometry. Using SphereCel means weight savings of up to 40-60% compared to solid fiberglass laminates with comparable mechanical properties.