The core box is filled with moulding material. It’s always important to make sure that the moulding material is sufficiently condensed to allow the core to build up sufficient strength.

After the core has been hardened by precipitation, the core box is opened and the core is taken out. 

The next production step is the painting procedure in which the core receives multiple layers of coating. The idea is to protect the moulding material from the hot steel to give it a quality casting surface.

After the coating has dried, the core is arranged in the mould.