Everything I've read seems to say that if a Hustler body is not fiberglass it's HDPE. Going on that, I bought some HDPE plastic welding rods to patch some holes in mine. I'm not having much luck. The Hustler body material is liquifying and the rods just kinda get gloopy. They don't seem to want to bond to each other. Thinking that my rods might be bad, I looked around the workshop until I found some plastic labeled HDPE, and it did pretty much the same thing. The Hustler body just isn't behaving like HDPE. Are we sure it's not something else? Maybe LDPE?