Things You'll Need:
- Aluminum Primers
- 1/8-inch Drill Bits
- Machine Screws
- Pliers
- Putty Knife
- Sandpaper
- Slotted Screwdrivers
- Variable-speed Drills
- Pliers
- Putty Knife
- Sandpaper
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Step 1
Drill a few 1/8-inch holes in a large dent.
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Step 2
Put a flat washer on a sheet-metal screw and screw it part way into one of the holes.
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Step 3
Pull on the screw with pliers to pop the dent out. (The washer keeps you from scratching the siding with your pliers.)
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Step 4
Mix enough 2-part body filler (such as Bondo) to fill in the dent.
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Step 5
Remove the screws and use a wide putty knife to apply the filler to the dent.
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Step 6
Make sure the filler dries even with the surface of the siding. You may need to fill it more than once. Let it dry completely between applications.
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Step 7
Sand the area once the filler is dry.
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Step 8
Apply a coat of metal spray-on primer.
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Step 9
Follow up with two coats of paint made for aluminum siding.






