1. During the operation of the spray gun, the center line of the nozzle must be perpendicular to the surface to be coated. The spray gun should move parallel to the surface to be coated and must not be tilted. The speed of the spray gun should be consistent.
2. The spray distance of the spray gun should be appropriate. According to your own air pressure, the jet distance is preferably controlled between 400 and 600 mm.
3, the consistency of the paint used for spraying must be moderate, neither too thick nor too thin. Before using spray, the paint consistency should be tested on the consistency of the paint, and the large-area spray should be carried out after meeting the design requirements.
4. For coatings containing coarse filler or mica flakes, the spray air pressure should be controlled between o.4 and O.8 MPa. For other types of coatings, it is best to determine the air pressure during formal spraying by spraying test.
5, spraying construction should be continuous operation, in one go, strive to spray a compartment and then pause.
6. If there are quality defects such as uneven thickness, color difference, and exposed joints, wait until the surface layer is basically dry and then spray a thin layer of cover; if there are serious quality defects, clean up the parts that do not meet the requirements. Clean and re-spray.
7, indoor spraying is generally sprayed first, after the spray wall, two times to survive, the interval is generally 2h; the external wall spray is generally two times to survive, a better finish can survive three times.
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