If you're a homeowner trying to sell your property or you're just concerned about the appearance of your home, a dent in the garage door can be a disheartening eyesore. A replacement metal garage door can cost several hundred pounds; and this figure does not factor in the installation cost. It is possible to repair a dent in a garage door for a fraction of the price of replacing the entire piece.
- Skill level:
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Things you need
- 59 ml (1/4 cup) washing up liquid
- 474 ml (2 cups) water
- 120-grit sandpaper
- Premixed auto body filler
- Putty knife
- Paper towel
- 100 per cent acrylic primer
- 100 per cent acrylic paint
Mix 59 ml (1/4 cup) washing up liquid and 474 ml (2 cups) cold water.
Soak a rag in the mixture and wipe down the dented area. Dry the area with a towel. This will help the products that will later be used to repair the dent adhere more effectively to the metal.
Sand the dented area with 120-grit sandpaper until you reach the metal. This will also help prepare the surface for the filler.
Spread a thin layer of premixed auto body filler onto the dented area with a wide putty knife. This filler can be purchased at many automotive supplier.
Allow the first layer of filler to dry and continue to place additional thin layers of the filler onto the dented area with the putty knife until the dented area is flush with the surrounding metal garage door. Allow the filler to dry completely.
Sand the final layer of filler with 120-grit sandpaper.
Wipe off the sanded area with a damp paper towel. This will remove any dust that was formed in the sanding process.
Apply a layer of 100 per cent acrylic primer to the patched area with a paintbrush. Go about 8 cm (a few inches) past the dented area on all sides to blend the paint in seamlessly with the rest of the door. Allow the primer to dry and apply a second coat, if needed.
Apply a coat of 100 per cent acrylic paint over the primer. Apply additional coats as needed to match the surrounding paint. Let the paint dry completely before raising the door.
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