What is the most effective way to paint James aluminium perf grilles?
There are several ways to paint James small holes aluminium perforated grilles. Here are a couple of painter’s tricks that work well. Spray rattle can method • The surface of the perforated grille must be thoroughly cleaned with a non-residue solvent. • Raw aluminium perforated grilles must be primed before painting. • Start with inside (rear) - this painting process will cover most of the perforated holes. • Clogged perfs can be cleared with a shot of compressed air or air compressor. • Let it dry sufficiently and turn the grille over. • Working on the front side, the first coating must be a light spray (dusting), tilt the rattle can to about a 45° angle, let it dry for 15 minutes, light dust spray a second coat again until the whole surface is covered. • A third and fourth spray coat may be required, but do not over spray! The grille must be completely dry before installing. Water base paint • The surface of the perforated grille must be thoroughly cleaned with a non-residue solvent. • Raw aluminum perforated grilles must be primed before painting. • Add about 30% water (based on paint volume) to the water base paint to thin and mix well. • Dab paint over inside (rear) of the perforated grille lightly using clean rag or foam material and let dry for an hour. • Dab paint over front side of the perforated grille with rag or foam material. • Must let it dry 20~30 minutes between steps. • Once completed, let dry for a couple of hours prior to installation.
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