including wood putty, but also epoxy fillers, acrylic fillers, water-based fillers, solvent-based fillers, auto-body fillers, and more. Wood filler is a solution of fibers (typically wood ...

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.