Curious as to why you spread it over the entire underside of the body, rather than just in the wheel well areas? Is it not mainly used as protection from stones?
I painted the entire underside of my body with a black epoxy paint, as a sealer, and only brushed the bed-liner in the wheel well areas. After the car was complete, I also used undercoating on the body and aluminum areas in the wheel wells. It is a better dampener from pebble impact, then the bed liner.
Bill,
To be fair ... I looked at some others where it was applied to most of the body so I did the same. I also think it adds another layer of protection to the other areas. I do have undercoating on all the exposed aluminum panels.
Carl
Mk 4 Roadster
October 25, 2012 - Kit Arrives
April 8, 2013 - Build Starts
August 23, 2015 - Rolling Chassis/Engine & Transmission Installed
March 26, 2016 - Go Cart