Once completed, the shelf life of paint sprayed surface is 2 years, and the environment is also the cause of paint cracking. The organic component of the structural material oxidizes or polymerizes at high temperature and air. Here we share some skills of surface treatment and prevention skills.  

      Metal surface painting operations are generally performed by air spraying on the surface of metal sculptures. The distance between the spray gun and the surface to be sprayed is in the range of 200 to 300 mm, and the compressed air pressure is controlled at 2 to 4 kg/cm2, so that the paint quality can be effectively guaranteed. Therefore, the spraying speed is slightly faster. After the spraying, it is dried and polished by water sandpaper. Spray it again. The thickness of the primer film is not less than 75 μm, the medium paint film is not less than 100 μm, and the thickness of the top coat is not less than 50 μm. After the paint is finished, the total dry paint thickness is not less than 225 μm.

According to the performance of the coating materials used in the processing of Modern stainless steel sculpture, it is possible to more effectively exert the anti-corrosion protection effect of the spray coating layer by applying the types of materials selected for the loss of the environment and the like. The choice of paint base, solvent and auxiliaries should be appropriate, the mixing ratio must be strictly in accordance with the process requirements to ensure that the mixing is fully uniform, to ensure dilution to the specified working viscosity.

      Maintenance and prevention treatment of cracking of outdoor stainless steel sculpture paint film. If cracking occurs due to aging of the paint film, use a blade to shovel the film about 10 cm on both sides of the crack to expose the substrate and find out the cause of the crack.  Repair the crack with atomic ash. After drying, sandpaper is smoothed, no debris, dry and then coated with the next paint; the first layer of the top coat should be thin and thin, and then the second layer after drying. The total thickness should not exceed 150μm.