REPAIR INSTRUCTIONS USING FIBER GLASS MATERIAL
Let filler set up until it is rubbery but not fully
hardened. Then re-establish original contour by filing off
NOTE-When filing excess, leave the filler
level slightly higher than that of the original
surface (Figure 13).
Figure 13. - Establishing Surface Contour
Pre-shrink filler, using a heat gun or heat lamp
(Figure 14). A minimum temperature of 49°C
(120°F) is required for shrinkage.
WARNING-KEEP HEAT SOURCE AT LEAST
12 INCHES AWAY FROM REPAIR AREA.
Figure 14. - Shrinking Body Filler
Now power-sand the filler with 360 grit
sandpaper until it is smooth and even with the
Figure 15. - Sanding Surface
If the filler is slightly porous (has fine pinholes),
apply a thin coat of glazing putty (Figure 16).
NOTE-If the filler is pockmarked, do not use
glazing putty. Instead, apply another layer of
body filler, following steps 4 through 8
Figure 16. - Applying Glazing Putty
Clean the area with air, and remask if necessary.
Then spot prime the surface and wet sand with 400 to
600 grit sandpaper. Complete the repair by painting the
surface (Figure 17).
Figure 17. - Painting the Surface