Questionhi, I'm rebuilding a 68 charger for my grandson and have never block sanded a car. this is probably the last project i'll be able to do as i have developed parkinsons.
any directions you can give me would be greatly appreciated.
thx jt
Answer I can appreciate what you are doing as this is a healthy young mans job. I know, I've been doing this for close to 40 years. Block sanding is very strenuous. After you main body work is done, spray several coats of a good primer/surfacer, let dry at least over night. Depending on how rough your surface is, block sand with at least a 180 grit paper, maybe coarser if necessary. Prime again and repeat with a finer paper until you get the desired surface to paint.
Use the longest sanding board you have using long, diagonal strokes. Do not stay in the same place very long. Work your way up and down your panels, changing angles all the time so you are sanding the same amount off over the complete panel. Your shoulders and arms will get tired and your hands will hurt, take a day or two off from the job, that's what I do.
I am doing a 57 Chevy right now, in my spare time, blocked my first coat of primer/surfacer with 80 grit, then reprimed, then 180 on the way down to 400 until it was perfect, I've working on this car off and on for two years. It's a tough job building a show car. What you see on TV is a crew of guys working on the same car with unlimited funds, we don't have that luxury.
