We help people repair plastic
Polyvance is closed for Independence Day. We will reopen Friday, July 05.
Information
1978 Trans Am Bumper Repair
March 11, 2019 by Polyvance
Information listed below is accurate as of the date of blog publishing. Any pricing or part numbers referenced may be invalid in the future. Please contact Polyvance with any questions or concerns.
1978 Trans Am Bumper Repair
We recently repaired a 1978 Trans Am front and rear bumper. The bumpers were made of polyurethane, and they were in pretty rough shape when they arrived. Polyurethane is a thermoset plastic, and is NOT meltable. It can be repaired with the airless plastic welder. This will not provide a fusion weld; the urethane welding rod is used more like a hot melt glue.
To do this repair, we used an airless plastic welder, R01 polyurethane welding rod, 2000-T Flex Filler epoxy, and 3043 All Seasons Black Jack waterborne primer surfacer. We have posted some photos of the repair process below.
Before:
The front bumper
Front bumper - detail
Front bumper - detail
The rear bumper
Rear bumper - detail
After sanding:
The front bumper after sanding
Front bumper - detail
Front bumper - detail
Front bumper - detail
After Repairing and Priming:
The front bumper after being repaired and primed
Front bumper - detail
Front bumper - detail
The rear bumper after being repaired and primed
The rear bumper after being repaired and primed
Click here to watch our videos on thermoset polyurethane repair.
