Liquified carbon sprayed on haphazardly in small patches is not something that I'd want to trust my hunt to . Use liquified baking soda , it's a lot cheaper and works better .

If carbon suits are what you want go here : Sportsman's Guide
Look up "chemical suits" on the search bar , you'll find jacket and pants for $15 . These are mil issue MOPP suits , and they contain more carbon per square foot than any ScentLok suit . They are also so cheap that they're disposable after about 2 weeks of wear . DON'T PUT THEM IN THE WASHER !