1. Clean the filament using isopropyl alcohol.
2. Attach tape to both sides of the filament.
3. Using a small brush or marking pen, apply silver paint.
4. After 2—3 min, carefully remove the tape without damaging the applied area.CAUTION:
Do not operate the rear window defroster until the paint is completely dry. It may cause other malfunctions if it is used before the paint is dry.
5. Dry the repaired part according to the following procedure.
When the room temperature is 25 °C {77 °F}, leave it as it is for 24 h.
When a hot air blower is used, dry with the 150 °C {302 °F} air for 30 min.