Does anyone know what to use for smoothing the surface of a soft plastic(It seems similar to high density polyethylene)? I'm trying to repair a bumper that mated with a rock(not the Z). I was able to smooth out the main wrinkles by heating with a blow dryer and bending it back, but there is some damage left that will have to be filled with something and sanded smooth. I realize that almost nothing sticks to plastic, especialy if it's polyethylene, but maybe there is a trick or two out there besides purchasing a new bumper. Thanks, Victor.

3M 8115 panel bonding adhesive can be used for bumper cover repair.

Go to a Full Automobile Paint store. They will usually be the ones to cater to the body shops Ask / look for the Flexible Bumper Repair Kit by either Marson or Bondo or Evercoat. You can get it in either the yellow or black formulas.

Enrique

Thanks guys. Victor