With open moulding, the composite laminate is exposed to the atmosphere during the fabrication process. In general the impregnation of the dry reinforcements is done by hand. The most widely used processes of open moulding are hand lay-up and spray-up. Where the reinforcements are either hand laid or sprayed into the mould.

Open mould processes are suitable for both simple and highly complex parts.

Lantor products for open mould processes: