Reasons and solutions for the occurrence of adverse phenomena in leveling agents

Reasons and solutions for the occurrence of adverse phenomena in leveling agents: 

1： The reason for the occurrence of flow hanging phenomenon:

1. The melting viscosity of the coating is too low;

2. The coating is too thick;

3. The coating gelation time is too long;

Solution:

1. Add anti flow agent;

2. Reduce the thickness of the coating film;

3. Shorten the gelation time.

2： Reasons for pinhole phenomenon:

1. Poor surface treatment of the coated material, with stains or spots

2. There are pinholes on the coated object, such as castings

resolvent:

1. Strictly control the quality of surface treatment;

2. Spray the coated material under preheating.

3： Surface orange peel and brush marks:

Reasons for surface orange peel and brush marks:

1. Uneven thickness of sprayed coating;

2. The degree of powder atomization is not good, and there is powder accumulation in the spray gun;

3. Low curing temperature;

4. The powder is damp and the powder particles are too coarse

5. The baking temperature is too high;

6. The coating is too thin.

Solution:
1. Make the coating film thickness uniform;

2. Adjust the spray gun;

3. Moderately increase the curing temperature;

4. Replace with dry powder;

5. Moderately reduce the baking temperature.