PPG Training

Custom Restoration Guide 2018

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30 SANDBLASTED BARE METAL PD-1151 Caution: Wear the proper safety protection when sanding, cleaning, mixing and spraying all materials included within this process. There is no metal treatment in this process. Metal treatments cannot be used on a surface with a deep profile, like sandblasting or grinding with coarse grits. 1 After paint removal, clean sandblasted part with dry air. Use clean gloves to avoid touching blasted metal with bare hands. Do not sand. Do not wipe with any cleaners. Sandblasted part is already abraded and clean. 2 Immediately apply two coats epoxy primer. CAUTION: When left unprotected, bare metal begins to oxidize (flashrust) after 30 minutes at 50% relative humidity. 3 Complete welding, rust repairs and sheet metal patching. 4 Clean with the appropriate PPG cleaner. 5 Reapply epoxy primer for corrosion protection. 6 Proceed to body work. Refer to the Body Filler Process, PD-1180.

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