Body - `Enduraflex' Panel Repair
Number 84-10-8 Date 2/84Subject: 1984 FIERO "ENDURAFLEX" PANEL REPAIR
The following information details the procedure to be used for the repair of Fiero "Enduraflex" panels when structural integrity must be restored.
1. Remove affected panel where applicable. In many cases, repair may be accomplished without removal of the part.
2. Clean area(s) to be repaired with a wax, grease and silicone removing solvent applied with a water-dampened cloth. On structural type repair it will also be necessary to clean the underside of the repair area. Wipe dry, then sand the surface about 40 mm (1-1/2") away from each side of the break with a #50 grit disc.
3. Align and secure the piece on the faceside of the part with two inch body sealing tape. Use a lightweight clamp, if necessary, to align joint.
4. Cut two pieces of fiberglass cloth large enough to overlap the break 40 mm (1-1/2"). Cut only to length required.
5. On a clean, flat surface of nonporous material such as a metal, glass or plastic pallet, deposit equal length beads of each component (3M Flexible Parts Repair Materials #05900 or equivalent). With a paddling motion, mix the two components until a uniform color and consistency is achieved.
6. Apply a layer of the mixture approximately 3 mm (1/8") thick on the backside of the panel overlapping the break at least 40 mm (1-1/2").
7. Apply one piece of the pre-cut fiberglass cloth to the applied adhesive and cover the cloth with additional adhesive. Apply the second piece of the pre-cut fiberglass cloth to the adhesive and immediately cover the cloth with additional adhesive in sufficient quantity to fill the weave.
8. Allow 20-30 minutes cure time at 16 to 27 degrees C (60 to 80 degrees F). Trim excess repair material at edge if necessary.
Repair the faceside of the panel using the following procedures:
1. Clean topside of panel with a wax, grease and silicone removing solvent applied with a water dampened cloth. Wipe dry.
2. With a random orbit sander fitted with a #180 grit disc, remove the total paint film in and surrounding the area(s) to be repaired. The repair material should not overlap the painted surface.
3. With a drill motor and a 3" #50 grit disc or as an option, a rotary file, cut a "Vee" along the break line approximately 13 mm (1/2") wide. Remove all dust and loose particles from the repair area.
4. Mix and apply the repair material. Apply a light coat first over the damage; then continue application to a level slightly above the surrounding contour.
5. Allow the applied mixture to cure 20 to 30 mintues at 26 to 27 degrees C (60-80 degrees F).
6. Establish rough contour, where possible, with a curved tooth body file. If low areas or pits remain, mix and apply additional adhesive.
7. Block sand using #220 grit sandpaper to establish accurate level and contour with the surrounding surface.
8. For final feathering, use a random orbit sander with a #320 grit disc.
Refer to Dealer Service Bulletin 84-2-2 for paint repair procedures.
A comprehensive program conducted by Fisher Body which covers repair and paint procedures (course number 22209.60) is available through the local GM Training Center.
Below is a list of typical equipment and material necessary to perform the above described repair procedures.
^ Wax, grease and silicone removing solvent
^ Cloth back body tape
^ A supply of 6" #180 grit sanding discs
^ A supply of 6" #320 grit sanding discs
^ A supply of 3" #50 grit sanding discs
^ Random Orbit Sander with a 6" backing pad
^ A 1/4" or 3/8" drill motor with a 3" disc holder
^ Hand sanding block
^ Rubber squeegees
^ #220 grit sandpaper
^ A non-porous mixing palette
^ A wood paddle or putty knife
^ A curved tooth body file
^ 3M #05900 - Flexible parts repair material or equivalent