The polishing operation is a time-consuming and expensive process. Following certain rules can reduce the cost of the polishing operation.

It is important that every step of polishing is kept clean.

Photo-etching or graining or etch graining on the surface of finished moulding tools is a chemical method of surface treatment in order to provide a textured surface on highlighted parts of the tool. Such textured tools give plastic products a more attractive surface décor with a better grip, surface protection, and visual appeal. A wide-scale of natural and artificial surface patterns can be created by photo-etching technology.

Heat-treatment refers to a metal thermal processing process in which the material is in a solid-state by heating, holding, and cooling to obtain the desired structure and properties.