There are many reasons:

1. Shower painting needs to be heated to about 50 degrees in the paint tank. Paints from different manufacturers have different temperatures, and then circulate for two hours. When there are no bubbles on the paint curtain, proceed with spray coating.

2 The defoaming performance of shower paint is not good.

3 There are contaminants on the blade of the curtain coating machine or paint has solidified on it.

4 The sealing ring of the shower head is damaged and leaking, allowing air to enter the paint curtain.

5. The defoaming pump of the curtain coating machine does not work properly.

6 The upper oil pipe is leaking.

Jinan UV Paint Laowang will help you solve it!