Thanks guys. Yeah, there will be sand in the frame rails, cowl and rockers for years to come. After I cleaned the bare metal I took an empty spray gun and sprayed with just air pressure the whole section with the exact same pressure I would be priming at. That usually knocks any loose sand free from the car that was in the twilight zone during cleaning and saves me from later on. The primer I'm using is by Clausen and it's called "All You Need" It's the newer version of the popular "Z Chrome" Rob