Horseman
I am pretty certain BDL finish is not Imron, especially the early vintage ones. They are both polyurethane but several things about the manufacturing process make me believe it is a proprietary finish on Remington's part.
I also think I remember Imron as being a bit late for BDLs now that I think about it. I think Imron came out in the early '70s? My Google-fu is weak this morning.
art
It was Imron in the mid 90's and I'm positive. At that time I bought a new BDL and had a 94' or 95' catalogue where they mentioned it by name. I was going to tech school at the time for Auto Body so I knew my paint and even talked to the DuPont rep about on one of his weekly visits. It wouldn't surprise me if they've now gone to a different maker but it is still a catalyzed urethane to be sure. Very tough stuff.
