PPG Training

Custom Restoration Guide 2018

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Page 45 of 155

46 BODY FILLER PROCESS PD-1180 Caution: Wear the proper safety protection when sanding, cleaning, mixing and spraying all materials included within this process. 46 Epoxy primer must dry for one hour and all metal work must be completed before starting the body filler process. Applying body filler over epoxy primer provides maximum corrosion protection for the metal. Apply filler within seven days of applying epoxy primer to maximize adhesion. OPTIONAL: Scuff Epoxy with P120-P180 grit sand paper or red scuff pad. Do NOT break through Epoxy when scuffing. 1 Clean the repair area with the appropriate PPG cleaner. 2 Mix and apply body filler over epoxy. Use the suggested amount of hardener. Excessive amounts may result in product failure. Apply thin, tight coats of filler, building up to fill as you spread, rather than a loose, thick coat. Spread as large of an area as possible instead of many small areas (patches) on a large panel. 3 Block sand body filler with P40 grit paper on a hand block to rough shape the filler. Avoid coarser grits. The "V" of a 40 grit scratch is not as deep as 36 grit scratches. If possible, sand body filler the same day it is applied. The longer it dries, the more difficult it is to sand. For maximum corrosion protection, exposed bare metal should be covered with another coat of epoxy primer prior to Primer Filler stage. 4 To more easily identify low areas, apply Guide Coat to body filler before final sanding. 5 Finish sand body filler with 80 grit sandpaper until guide coat is gone. If low spots still exist, reapply body filler. Do not proceed to Primer Filler stage until filled area is even. Adding body filler AFTER primer filler should be avoided to prevent possible adhesion, staining and shrinkage concerns. 6 Ready for Primer Filler PD-1510 when body filler is completed and the car is straight.

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