F 350 2WD Pickup V8-351 5.8L VIN H 4-bbl HP (1985)
Technical Service Bulletin # 90153
Date: 900719
Lower Body Stone Protection - Repair Procedure
PAINT - LOWER BODY STONE PROTECTION REPAIR TIPS
Article No. 90-15-3
FORD:
1985-90 CROWN VICTORIA, ESCORT, MUSTANG, TEMPO, THUNDERBIRD 1986-90 TAURUS 1988-90 FESTIVA, PROBE
LINCOLN-MERCURY: 1985-90 CONTINENTAL, COUGAR, GRAND MARQUIS, MARK VII, TOPAZ,
TOWN CAR
1986-90 SABLE
1987-90 TRACER
LIGHT TRUCK:
1985-90 BRONCO II, BRONCO, ECONOLINE, F-150, F-250, F-350, RANGER 1988-90 F SUPER DUTY
ISSUE:
A service repair procedure has been developed to restore damaged factory-applied lower body stone protection vinyl material.
ACTION:
If service is required, use the following procedure to restore damaged lower body stone protected areas.
This abrasion resistant coating material (D9AZ-19515-A) is primarily for repair of factory-applied protective coatings. However, this material may also
be installed on previously unprotected vehicles.
If the vehicle has body damage in the area of the factory-applied coating, body damage must be repaired before repairing the protective coating.
WARNING:
WHENEVER USING PAINT, SOLVENT, REFINISHING OR RECONDITIONING MATERIALS, WEAR A NOSE OR FACE
MASK, PLUS HAVE ADEQUATE VENTILATION IN THE WORK AREA.
Large Repair Areas
A large repair area, resulting from peeling or damage, will require removal of the factory-applied vinyl coating.
NOTE:
WHERE SHEET METAL IS DAMAGED TO THE EXTENT THAT A FENDER, DOOR OR QUARTER PANEL REPLACEMENT IS
REQUIRED, (OR IN AN INITIAL INSTALLATION), SKIP STEPS # 1 - 3.
1.
Use a heat gun or lamp to soften the vinyl coating until it is pliable.
2.
Scrape off the softened vinyl with a putty knife or similar tool. If necessary, sand off any hard-to-remove vinyl coating using an orbital disc sander
(# 80 Disc).
NOTE: THE REPAIR MATERIAL, ABRASION RESISTANT COATING (D9AZ-19515-A), IS NOT SUITABLE FOR "SPOT" REPAIRS. THE
OLD COATING MUST BE REMOVED COMPLETELY FROM EACH DAMAGED PANEL.
3.
Make the necessary repairs to the sheet metal.
Coating Preparation and Applications:
The abrasion resistant coating is available in quart cans. About two quarts will be required for an initial installation on a passenger car similar to a
factory-applied system. Slightly more will be required for a larger vehicle such as an Econoline.
The specified dry film thickness of 15 to 20 mils (.015 to .020") will require at least three or possibly four applications of coating material, with flash off
time allowed between coats. As with painting, spray coat the complete lower panel.
The adherence of this coating to properly prepared sheet metal is excellent and it is not necessary to prime the repaired sheet metal. However, adhesion
will be adversely affected unless the sheet metal (either repaired or new) is prepared in accordance with the following procedure.
Coating Preparation - Masking Car
1.
Install covers over the wheels.
2.
Determine the area to be coated.
^
If the vehicle has lower body side mouldings (12-14" above the "turn under" of the rocker Panel), the moulding can serve as the upper margin
of the area to be coated.
^
If the vehicle does not have suitable mouldings, a sculpture or break line in the sheet metal can be used.
^
The method used in masking off the upper coating margin line will depend on the presence or absence of mouldings in this area.
VEHICLES WITH SIDE MOULDINGS
3.
Position the masking tape so that the moulding lower side is covered down to, but not on the sheet metal.
VEHICLES WITHOUT SIDE MOULDINGS
