1. Two coating methods of the two roller coating machine

1.1   Forward coating method

Advantage:  less wear and tear for the roller, less change roller.

Disadvantage: less coating weight, poor surface roughness (forward coating mainly used for coating prime and back coating)

1.2  Reverse coating method

Advantage: high coating weight with beautiful and smooth coating surface.

Disadvantage: large wear and tear for the coating roller, change more rollers.

3.  Three roller coating method

Full reverse method

Advantage: Higher coating weight, better coating surface

Disadvantage: Coating amount is not easy to grasp.

(this three roller reverse coating method is mainly used fo refrigerator door panel, whiteboard and other top grade products