Cast Iron Tool Rust Prevention with Polyurethane, Penetrol and an Important WARNING!
DON’T MISS THE WARNING AT THE END OF THE VIDEO! Well, it took an entire week to get here, but we are finally applying a couple rust-preventative treatments on my Shopsmith jointer. Since we first talked about this I have expanded from my original pan of applying a 50/50 blend of oil-based polyurethane and mineral spirits to doing a test of that, as well as water-based poly AND an interesting product called “Penetrol”. Regardless of the topcoat used I always use some form o...
