Surface Treatment for Silica Sol Castings

The main products of silica sol castings we produce are as follows:
Valve castings
Pump castings
Impeller castings
Food machinery castings
Cnc lathe castings
1. Polishing. Polishing is one of the most important surface treatment for silica sol castings. With polishing, the surface of castings will be much more smooth and bright. Surface roughness can reach Ra0.63-0.01. Surface roughness of finish polishing even reach Ra0.01max. Usually used polishing methonds for silica sol castings are mirror polishing and electrochemical polishing.
2. Painting. Some customers also require their silica sol castings to be painted with certain colour.