Paint masks have been used for many years in repetitive decorative painting. A paint spray mask having accurately formed openings is positioned adjacent the work-piece to be painted. The openings in the mask define the areas of the work-piece surface that are to be painted. Paint is applied to the workpiece surface by use of a spray gun, and after a number of workpieces have been painted—producing an accumulation of paint on the paint spray mask—the mask must be cleaned. Barriercoat process paint stripping has become the dominant mask washing process replacing solvents.
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