Before applying any filler, Jeff used a piece of spring steel to get an idea how much he'd need for the job.Here you cansee the gap between the body panel and the piece of spring steel.This gap is ...

Polyester body filler, better known by the almost generic trademark, Bondo. There’s a lot more you can do with Bondo than fairing in that sweet body kit, bro, and [Eric Strebel] ...

Using a DA, scuff all the body surfaces to be sealed and clean with DX330 prior to sealing. 16 . Once the body is masked thoroughly, apply sealer and allow to dry.

Better Filler, Better Results. Bondo is actually a trade name for the first brand of polyester body filler, though it's now used generically as a verb to describe the use of body filler in a repair.

We didn’t always have polyester body filler. In the days before OSHA, auto body workers would use a torch, bricks of lead, and a grinder. You can check out a video of the era before OSHA here.