Using a flexible plastic spreader, spread filler in an area at least 3 inches outside of the actual damage. You'll need the extra space to properly smooth and feather the hardened filler. Don't worry about being too neat with it. You'll be sanding away any ugliness once the filler hardens.
Auto Body Repair, Dent Repair
By Matthew Wright, About.com
Applying the Body Filler
Apply filler to a larger area than the damage.
photo by Matt Wright, 2008
Remember, once you've mixed the filler, you have less than 5 minutes to get it on the damaged area.
Index: Auto Body Repair, Dent Repair
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