From Novice to Pro: My Student's Journey in Learning Glue Pulling. Enter Trevor, the PDR pro in training. He's learning the art of paintless dent repair, and let me tell you, it takes patience and the right tools to get the job done. First, Trevor preps the surface by heating up the panel to ensure the type glue he sues will bond properly to the dented area. Then, he activates this type of cold that will be used to remove part of the dent during the GP process. The panel will need reprepped for