PPG Training

Custom Restoration Guide 2018

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112 SINGLE-STAGE COLOR APPLICATION PD-1720 Caution: Wear the proper safety protection when sanding, cleaning, mixing and spraying all materials included within this process. 1 Single-Stage colors are designed to be applied over properly cleaned and sanded 2K primer surfacers or 2K primer sealers. Finish sand primer surfacer with P400-600 grit sandpaper. Sealers can be sanded with P600 grit sandpaper if desired or topcoated wet-on-wet. Select the proper G-shade undercoat to achieve proper color match and coverage. 2 Single-Stage color has several options for mixing. Typically, general-purpose hardeners dry quicker and are easier to polish. Mar-resistant hardeners are slower but will provide the best gloss before polishing. 3 Single-Stage is sprayed in wet coats similar to a clearcoat application. Follow the PDS recommendations for flash, air dry and bake times. Apply 2-3 coats to achieve proper coverage and hiding. Apply 2 additional coats if you plan to flat sand and polish, allowing adequate flash time between coats. 4 Single-Stage color can also be sanded after 3 coats have been applied. After a minimum eight hours dry time, flat sand with P600 grit sandpaper. a. Apply 2 more coats of color. OR b. Apply 1 coat of color, followed by 2 coats of color/clearcoat mix (see Option 2 below). 5 OPTION #1: Combine clear with single-stage color for the final two coats. This is the preferred method, and best for polishing. OPTION #2: Single-stage color can be clearcoated. Apply clearcoat within 24 hours of single-stage application. See single-stage PDS for recommended clears and mix ratios. 6 Single-stage usually can be polished 24 hours after application. However it will polish best when Clearcoat is added to the single-stage color and allowed to dry for 7 days. Single-stage can be sanded with P800 grit sandpaper after 8 hours dry time. Let the remaining solvent evaporate before polishing.

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