When plastic has been asked to stretch or bend in a direction it doesnâ€™t want to there will often remain white â€œstressâ€ marks. For example, on a belly pan.
Many times, these white marks can be greatly minimized and almost eliminated by carefully warming the area with something like a hair dryer or heat gun. You must do so with extreme caution and slowly so you donâ€™t warm the area too quickly. This really works well on blue Yamaha belly pans.