For a DIY paintless dent removal, a plunger, aluminum foil, a block of wood, a hammer and a soft cloth are needed. A lighter, canned air, a hair dryer, an air duster and a dent pulling tool should also be available. A dent removal kit may also come in handy.
There are several simple ways to do a DIY paintless dent removal. The first uses aluminum foil, canned air and a lighter. First, cover the dent with the foil, and use the lighter to apply heat to the foil for at least 30 seconds. Remove the heat, and immediately spray the foil with canned air; this process drastically changes the temperature of the metal, which often causes it to change form and remove the dent. Use the soft cloth to wipe up any remnants of canned air.
A hair dryer and an air duster can produce similar results. Heat the dent with the hair dryer for at least a minute, and then spray it with the air duster. This causes the formation of a layer of ice. The ice slowly melts, and the temperature change removes the dent. Use the soft cloth to wipe the area dry after the ice melts.
Suction is another way to remove a paintless dent. Try first with a simple household plunger. If this does not provide enough suction, use the suctioning tool in the dent removal kit. The suction applied should pop the dent out.
Dent pulling tools are sold both separately and in the dent removal kit. Brace the back of the metal with a block of wood. Put the pulling tool over the dent, and pull to pop out the dent. Use a hammer to lightly tap the area around it if the metal seems uneven.