I have an appointment for rust proofing for my 2007 Chev Cobalt. The company advertises RustBlock, I would like to find some info on it. I live in Newfoundland, the company is Car Guys.

Rustblock is a registered trademark product and you can read the information on their website:

Rust Block Automotive Corrosion Protection. Rust proofing for all vehicles (http://www.rustblock.com)