Quarter panel and door sound deadener.

I'm not flattering the factory method by any means, I'm doing a stock style resto and the little details make all the difference. That sound deadener is a very high build (same stuff they used as undercoat apparently) and has a unique texture. My car has the original quarters still and the factory made a mess of it with the odd sag and it's ugly mask job, which I plan to recreate since I'm doing full oe style quarters and I can spray them before welding them on. My door skins will get the same treatment before I put them on as well.

65DartGTConv I'd like to see some pics! I have to use the Schutz gun to apply this stuff as well. Did the 3M style undercoat have a thick build?