This article provides a practical maintenance procedure for spray guns after water-based paint application. It covers immediate flushing, cup cleaning, air cap care, nozzle and needle cleaning, drying, lubrication, reassembly, storage, and common mistakes that affect spray pattern quality and coating cleanliness.

This article explains why high-viscosity automotive primer cannot be sprayed properly through a small nozzle spray gun. It covers fluid passage restriction, atomization failure, over-reduction risk, film build problems, primer shrinkage, nozzle selection, and practical setup steps for professional refinishing work.

This article explains how professional painters can quickly diagnose and correct an unbalanced left-right spray fan pattern on site. It covers paper testing, air cap inspection, horn-hole cleaning, fluid tip checks, needle alignment, working air pressure, material viscosity, and replacement judgment.