I did this on my car the other day, I had a small dent, the size of a nickel on the rear quarter panel.
I used to dry ice on it and the dent is no longer there
The way to do it:
Use a heat gun on the section that has a dent, get it really hot.
Once it's really hot, put the dry ice on it and hold it for 5-6 mins.
You will hear the dent pop out when you're holding the dry ice. Regardless let 5-6 mins go by in total.
DO NOT press too hard. (if you have to hold it)
Use gloves, DO NOT touch the dry ice with your bare hands.
After 5-6 mins has gone by, remove the dry ice, put the heat gun to it again for 1-2 mins.
And the dent is gone.
The whole point of using dry ice is so the paint won't flake nor will it leave any marks, so you'll never be able to tell there was a dent there in the first place.
I used to dry ice on it and the dent is no longer there
The way to do it:
Use a heat gun on the section that has a dent, get it really hot.
Once it's really hot, put the dry ice on it and hold it for 5-6 mins.
You will hear the dent pop out when you're holding the dry ice. Regardless let 5-6 mins go by in total.
DO NOT press too hard. (if you have to hold it)
Use gloves, DO NOT touch the dry ice with your bare hands.
After 5-6 mins has gone by, remove the dry ice, put the heat gun to it again for 1-2 mins.
And the dent is gone.
The whole point of using dry ice is so the paint won't flake nor will it leave any marks, so you'll never be able to tell there was a dent there in the first place.