Cold press moulding is a closed mould process. Fibres, in the form of mats, are placed onto the mould and overlap at the pinch-off area. Resin is poured into the mould, the press lowered and the mould closed.
The resin is forced to the edges of the mould but cannot escape due to the overlap of fibre at the pinch-off area. Over this area the fibre is compressed more than over the rest of the mould. The effect is that the resin is contained in the mould but air can escape, hence creating a back pressure that ensures the resin flows into all parts of the mould.
- Both sides of the product are smooth
- Production rate is high
- Cost effective
- Moulds are expensive and a press is required