I am about to get started restoring a set of 31 running boards. They have a large amount of the original rubber coating on them. Do you think I will be able to get that off a commercial sand blaster or will I need to use a chemical stripper on it? Thanks.
A heated scraper or wide chisel works well on hard old rubber. Heat it with a torch, doesn't have to be real hot and use good welders gloves and it should be like a knife through butter.