PPG Training

Custom Restoration Guide 2018

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78 PRIMER FILLER PROCESS PD-1510 Caution: Wear the proper safety protection when sanding, cleaning, mixing and spraying all materials included within this process. Primer Filler, such as finishing putty or polyester primer, levels and fills minor imperfections, pinholes and P80 grit sand scratches. Spraying Polyester Primer (VP2100) will provide a more consistent sanding surface than spreading putty. However, care must be taken to NOT over-apply the polyester primer. CHECKPOINT: Body filler work is completed and car is straight. Body filler is finished with P120 grit and blown clean. All bare metal areas are covered with epoxy primer. VP2100 Polyester Primer should not be applied over bare metal, only over epoxy primer, fiberglass, or body fillers. Epoxy primer has dried overnight. 1 Clean the area thoroughly with the appropriate PPG cleaner, using clean towels. Dry completely. 2 a. Mix and apply finishing putty over the filler and ENTIRE REPAIR AREA—paint-edge to paint-edge or entire panel. OR b. Apply 3 coats of VP2100 Polyester Primer to a maximum of 6 mils. Avoid reverse body lines, belt lines or any tight areas that the filler can bridge and over-build. These areas should be sanded down thoroughly or reverse-taped to avoid excessive build of polyester. 3 Apply dry Guide Coat over putty or polyester primer. Block sand with P100 grit or finer sandpaper (P120-180 grit is a good start). Use a long block in a crossing pattern until guide coat is removed from all low spots, sand scratches and pinholes. If more fill is needed, reapply and re-block. The goal is to have a level panel without large sand-throughs. 4 Finish sand with P220-240 grit if next step is Primer Surfacer. Finish sand with P320-400 grit if next step is Primer Sealer. 5 Ready for Primer Surfacer PD-1520 or Primer Sealer PD-1701.

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