Filament Repair

Clean the filament using isopropyl alcohol.
Attach tape to both sides of the filament.
Using a small brush or marking pen, apply silver paint.
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.
  
  Fig 1: Attaching Tape To Both Sides Of Filament
  Courtesy of MAZDA MOTORS CORP.
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.