Compression moulding

A ready-to-mould sheet of chopped glass or carbon fibre, mineral filler and thermosetting resin, compression moulded under heat and pressure into stiff parts with good surface finish. SMC is widely used for vehicle body panels, electrical enclosures and building components.

A dough-like moulding compound of short chopped fibres, filler and thermosetting resin, shaped by compression or injection moulding. BMC suits complex, detailed parts such as electrical housings, reflectors and valve components.

A high-volume process in which molten polymer, often short-fibre reinforced, is injected under high pressure into a closed metal mould, solidified and ejected. It provides tight tolerances and complex geometry at low unit cost once tooling costs are recovered.

A closed-mould process in which a dry fibre preform is placed in a matched mould and liquid resin is injected under pressure before curing. It produces parts with two moulded faces, good dimensional control and repeatable quality at medium to high volumes.