I've been stripping the underside of the pan on my 76 beetle and there seems to be a couple of layers. Obviously the dirt, then a thick black layer. There seems to be a layer between that and the bare metal that looks like a clear-ish lacquer layer. Am I imagining this or is it something vw really used? Maybe some kind of rust proofing? It could be quite important as I am about to use POR15 and it seems to stick best to bare metal.
Can anyone enlighten me?
cam070 Custom Title Time!
1,332 posts · joined Jul 2009 ·
