PPG Training

Custom Restoration Guide 2018

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103 APPLYING MULTIPLE BASECOAT COLORS—WATERBORNE PD-1712 Caution: Wear the proper safety protection when sanding, cleaning, mixing and spraying all materials included within this process. 1 Verify colors by preparing sprayout cards, referring to PD-1631 Identify Color Formula. Confirm the number of coats required to achieve color matches and the correct G-shade of primer surfacer and/or sealer. 2 Apply waterborne basecoat color. Refer to PD-1710 for more information. 3 Two-tones, custom painting, and multiple colors: Use T490 / VWM5556 as an intercoat clear to protect basecoat by mixing as engine bay. Reference Internal Repair / Engine Bay PDS for more information. Any waterborne tint, color or blending clear can be converted this way. 4 Spray 2 – 3 wet coats, force dry 60 minutes at 120º or air dry overnight at 70º. Sand dry with P800 grit dry or with light gray scuff pad. 5 Tape over T490 / VWM5556 clear and spray additional waterborne colors. The converted clear protects basecoat color if any paint blows through. It can easily be wiped off with solvent or waterborne cleaners without damaging the basecoat color underneath. 6 Waterborne basecoat color can be clearcoated 15 minutes after the last coat has dried. For better results, let dry overnight but not longer than 24 hours. NOTE—If a wait longer than 24 hours is possible, T490 / VWM5556 should be used and then sanded before clearcoat application. 7 Since T490 / VWM5556 was converted to Engine Bay, it can be wiped with cleaners after drying. 8 Follow with the clearcoat application process described in PD-1730.

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