sound deadener

jbc426 said
Most of the aftermarket spray on material is water based now days. Resto Rick sells an oil based product used to simulate the factory style undercoating. I used it on my 70 E-Body to match the factory undercoating under the car using a Dutz spray gun. It came out looking amazingly close to original, but it took a bit of practice to get it that way.

Just to back up jbc426 on the Resto Rick's undercoating if your looking to replicate the factory appearance this really is a terrific product.

This was important for me on my resto to get this as close as possible, heres a few pics of how I achieved duplicating what I originally had,

some rough masking, I used duct tape since its heavy and resists being pushed down from the gun and flared it or left the edge of the tape pulled up so as to not leave a sharp edge but end up with a soft edge.

Then spray using a schutz gun aiming straight at the area your covering,

I'm really pleased with the way the product matched the texture and the film build and it will deaden the sound from these panels nicely. Hope this helps if this was an area you were inquiring about.