Window Grid Wire Repair

MATERIAL SPECIFICATIONS

Item	Specification
Acrylic Lacquer Touch-up Paint ALBZ-19500-XXXXA (match color to exterior grid wire)	ESR-M2P100-C
Rear Window Defroster Repair D8AZ-19562-AA or equivalent	ESB-M4J58-B

NOTE: A single break or any breaks which exceed 25 mm (1 inch) in one grid cannot be repaired. Install a new rear window glass.

NOTE: If the first layer of the heated rear window grid (brown) is damaged or missing, it will be necessary to apply touch-up paint on the glass prior to applying the silver rear window defroster repair. Do not apply touch-up paint to hairline breaks in the grid, as electrical continuity in the grid can be adversely affected.

Fig 1: Identifying Break In Heated Window Grid

Courtesy of FORD MOTOR CO.

Repair any inoperative grid wires using rear window defroster repair.
Bring the vehicle up to room temperature of at least 16°C (60°F) or above.
Clean the entire grid line repair area with a non-alcohol based window cleaner.
Mark the location of the grid break on the exterior of the rear window glass.

Fig 2: Marking Location Of Grid Break On Exterior Of Rear Window Glass
Courtesy of FORD MOTOR CO.
Using cellulose tape, mask the area directly above and below the grid break. The break area should be at the center of the mask.

Fig 3: Masking Grid Break Area
Courtesy of FORD MOTOR CO.
Use 3.0 to 4.0 grade steel wool to clean and prep a 6.35-mm (0.25-in) area of the grid on both sides of the break.

NOTE: If the brown layer is not broken or missing, apply only the silver grid repair compound to the break.

NOTE: Allow at least 5 minutes of drying time between applications.

Fig 4: Applying Repair Coating To Grid Break Area

Courtesy of FORD MOTOR CO.

Apply the repair coating to the grid break area in several smooth, continuous strokes. Extend the repair coating at least 6.35 mm (0.25 inch) on both sides of the break area.

NOTE: If both the brown and silver layers of the grid are broken or missing, apply a coating of the brown touch-up paint across the break area first. Do not apply the brown touch-up paint to the grid. The brown touch-up paint should only be applied to the break. Several applications may be necessary to achieve a color match. For hairline breaks in the grid, do not use brown touch-up paint, as electrical continuity in the grid can be adversely affected.

NOTE: Extend the silver grid repair coating at least 6.35 mm (0.25 inch) on both sides of the break area.

Fig 5: Applying Applications Of Silver Grid Repair Compound

Courtesy of FORD MOTOR CO.

Apply 3 applications of the silver grid repair compound to the grid and across the break.
After 5 minutes or after the repair area has dried completely, remove the mask.

CAUTION: Be careful not to damage the grid line with the razor blade. If this occurs, additional repair may be necessary.

Remove any excess repair compound above or below the grid line with a razor blade.

NOTE: The repair coating will air-dry in approximately one minute and can be energized within 3 minutes.

NOTE: Optimum adhesion occurs after approximately 24 hours.

After optimum hardness is achieved, clean the repaired area with a non-alcohol based window cleaner.