Plastic Welding - Repair broken bumper tab with hot air plastic welder

If you have a nitrogen plastic welder, you will get a stronger repair. Aim the flow of the air where the welding rod intersects with the plastic that you are welding. Be sure to melt both the rod and the existing plastic. On this particular weld, we are going to do several passes until the volume of the new plastic is about the same as the volume of the missing plastic. Use the airless welder to smooth the new material.