why not just get it plastic welded. i got my front bumper plastic welded for 50 bucks and it was terrible. crack down the side..crack in the middle...crack on other side. The best thing to do when repairing plastic is to use the same plastic to repair it with. That way, the stuff you repair it with isn't harder or softer than what your bumper is made of. When it's harder or softer, sometimes bad things can happen from that.
