Compression moulding is where you compress a predetermined amount of rubber between 2 halves of a mould to form one complete part. The mould is heated to the correct temperature, removed from the press and opened up to insert the blank. The mould is then re-assembled and returned to the hydraulic press and pressure is applied.
The vulcanization of the rubber depends on 3 things; pressure, temperature and time. Once the vulcanization has taken place the pressure is released and the mould removed from the press. The mould can now be opened, revealing your rubber moulding within. The rubber part is then removed from the mould and set aside to cool.
The process is then repeated to achieve the required amount of mouldings. After moulding, the part then receives an initial check before having the excess flash trimmed. It will then receive a secondary quality check before being shipped to the customer.