PPG Training

Custom Restoration Guide 2018

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102 BASECOAT COLOR APPLICATION— WATERBORNE PD-1710 Caution: Wear the proper safety protection when sanding, cleaning, mixing and spraying all materials included within this process. 1 Verify color by preparing a sprayout card following PD-1631, Identify Color Formula, and confirm the number of coats required to achieve color match and the correct G-shade of primer and/or sealer. 2 Ensure that all panels to be painted have been prepared according to directions in PD-1590, Sanding Primer Surfacer. 3 Apply waterborne basecoat color (reference PDS for more information). a. Apply the number of coverage coats as indicated by the sprayout card. Flash-off with air amplifiers until uniformly matte in appearance. b. Apply 1-2 control coats (reducing PSI, using an 85-90% overlap and increasing gun distance from panel) over the entire basecoat area. 4 Flash-off the waterborne basecoat color using air movement equipment to achieve a uniformly matted appearance. Use this time to mix the clearcoat and prepare the spray gun for the clearcoat application. IMPORTANT—Waterborne basecoat color can be de-nibbed between coats by DRY sanding with P600-800 grit sandpaper. DO NOT USE WET/ DRY SANDPAPER. Two coats of color should be applied over sanded areas when spraying metallic or pearl colors to hide any sand scratches. Do not use solvent or water as a sanding lubricant. IMPORTANT—Waterborne basecoat colors cannot be wiped down at any time with a solvent or waterborne cleaner. Only use tack rags made for waterborne basecoats to clean before applying clearcoat. 5 Follow with the clearcoat application process as outlined in PD-1730.

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