1. When using a spray gun, it's crucial to keep the nozzle aligned straight with the surface being painted. The spray gun should be moved parallel along the surface without tilting. Maintain a steady and even speed throughout the process for consistent coverage.
2. The distance between the spray gun and the surface should be carefully controlled. Depending on your air pressure, the ideal spraying distance is usually between 400 mm and 600 mm. This helps ensure even paint distribution and avoids overspray or uneven application.
3. The paint consistency must be right—neither too thick nor too thin. Before starting large-scale spraying, test the paint’s viscosity to make sure it meets the required specifications. Adjust as needed to achieve the best results.
4. For coatings that contain coarse fillers or mica flakes, the air pressure should be set between 0.4 MPa and 0.8 MPa. For other types of coatings, perform a test spray before the final application to determine the optimal air pressure settings.
5. Spraying should be done in one continuous motion if possible. Try to complete one section at a time, then take a short break before moving on to the next area. This helps maintain a uniform finish and reduces the risk of lap marks.
6. If you notice issues like uneven thickness, color variation, or visible joints, wait until the first coat is mostly dry before applying a thin topcoat to cover the imperfections. In cases of severe defects, remove the affected areas, clean them thoroughly, and re-spray for a better result.
7. When working indoors, start by spraying the walls first. After the initial coat, apply a second pass with an interval of about 2 hours. For exterior walls, two coats are typically sufficient, but for a smoother finish, consider applying a third coat if needed.
Ningbo Safewell Plumbing Co., Ltd. , https://www.safewellbrass.com