Paint coating foaming reasons and solutions

The seven factors that cause the coating to foam:

1. The substrate treatment is not in place, causing foaming when the residual material naturally volatilizes.

2. When the primer film is not completely dried, the surface coating is applied again.

3. The joints and holes of the substrate are not filled, and there are holes and holes.

4. The viscosity of the paint is too high. The paint ratio is not appropriate.

5. Drag the brush back and forth while brushing, and the resulting bubbles are not eliminated.

6. There is water in the compressor and air tube, or water splashes on the construction surface.

7, most of the same reasons as pinholes.

Eight ways to solve the problem of foaming after filming:

1. The substrate should be treated thoroughly without any residue.

2. After the primer is fully dried, brush the top coat.

3. Fill the gaps and perforations of the joints of the substrate and polish them before painting.

4, the bubble is slight, after the paint film is dry, sanding with water sandpaper, and then make the topcoat. For serious bubbles, first pick up the bubbles, carefully sand them with sandpaper and clean them, then repair them layer by layer.

5, the paint viscosity should be appropriate.

6, do not drag back and forth when brushing, unified direction.

7. Regularly drain the water from the compressor and install a water separator.

8. Refer to the countermeasures for pinholes.