QC Process – Standard Operating Procedure

        Objective

Qualification for COLOUR as compared to the controlled samples signed off by the customers.

Qualification for SHADE variation and sorting process that adhere to customer's specification.

Qualification for physical properties of the tiles as customer's specification.

        Production Inspection

We will inspect the raw material, water absorption of the powder in the Silos and the body breakage of the pressed tile at the press line.

Much attention will be paid on the density and viscocity of the Glaze on the glazing line.

Last but not least, we will monitor the firing temperature of the kiln to obtain target size and shade.

       Polishing Line Inspection

In the instance of polished tiles, much effort will be placed on the surface shine, surface flatness and shade of the tile.

Shade Inspection

One of the critical Quality Assurance factor is to inspect the shade of the tiles to obtain constant shade in the same batch of tiles.

        Warehouse Inspection

Our secondary quality assurance inspectors will make final random checks of the products at our warehouse before loading to container and ship to customers