DIY Rear Window Defogger Repair Kit for repairing scratched or broken rear window defogger grid lines. Surfaces to be adhered must be smooth and flat. Repairs can be made ideally at temperatures from 50°F to 75°F / 10°C to 24°C. Glue is specially formulated to conduct electricity. Includes 2.0ml Silver repair compound, masking tape, clean cloth, cotton swabs, alcohol pre-pad, and plastic scraper.