Repair Dents in Plastic Bumpers and Body
Because they are “thermoset” products they will essentially “remember” their shape. And depending on the severity and location of dents in body and bumper covers, boiling hot water will often times bring them back to original shape, including the paint.
There are a ton of video’s online about this, but the common thread is boiling hot water.
YES, it’s that simple; bring a big pan of water to boil, then pour it slowly over the dented bumper cover, AND AFTER YOU POUR THE WATER, reach behind the cover with gloves on—push the dent out. DON’T BE UNDER THE CAR WHEN SOMEONE IS POURING THE WATER.
NO, HOT water won’t damage the paint, either on the body or bumper cover.
Heat guns also work but not as well. And bare in mind, HEAT GUNS CAN BURN THE PAINT AND MELT THE BUMPER COVER, so if you use one, use it carefully, constantly moving it over the surface to avoid burning.