Here is a good way to protect your rc car body's and make them last way longer Grab some drywall tape and some shoe glue and a paint brush. Now put the drywall tape on the inside of your rc car body, I like to use a hot glue gun to keep the drywall tape down in the corners and crevices, now grab the paint brush and "paint" the inside of the body and and the tape with a generous layer of the shoe glue.. make sure you get the corners really well. Now just wait for it to dry and go out and enjoy....😊