The surface of   the coated object is wet or there are substances such as acid, alkali, salt   and oil.

Ensure the   cleanliness of the surface of the coated object.

The surface of   the coated object is too rough, resulting in a large amount of paint   absorption.

Carefully   polish, choose the appropriate sandpaper model and polishing method to   eliminate the roughness of the coated surface.

The primer and   the topcoat are not matched.The primer absorbs the topcoat.

Increase the   compatibility of primer and topcoat to eliminate the absorption of topcoat   from primer.

The paint film   is too thin.

Increase the oil   output of the spray gun, slow down the speed of the gun, increase the number   of guns, and ensure the thickness of the coating.

The moisture or   oil in the compressed air is not cleanly removed and mixed into the coating   to cause loss of gloss.

Ensure the quality   of compressed air.

Paint mixing   tools and equipment, painting tools are not clean so that the paint is mixed   with water or oil.

Ensure the   cleanliness of coating equipment and tools.

The humidity of   the construction environment is high, greater than 90%, and the coating is   easy to lose gloss due to water absorption. The application temperature is   too high, the drying is too slow, and the water accumulates on the surface to   cause loss of gloss.

Control the   temperature and humidity of the painting environment. It is recommended to   bake and dry during spraying in a low temperature environment

The air in the   drying room is dirty or the baking temperature is too high, resulting in loss   of gloss.

Ensure that the   air in the drying room is clean and control the baking temperature.

Paint or thinner mixed with water or   oil.

Ensure that the   coating equipment and tools are clean.