The blue/grey color is from a phosphate-based metal conditioner. After I blasted a section, I washed it with Zero-Rust "Prep-Step" metal conditioner, to keep it from rusting until I finished the entire thing.
Description:
The blue/grey color is from a phosphate-based metal conditioner. After I blasted a section, I washed it with Zero-Rust "Prep-Step" metal conditioner, to keep it from rusting until I finished the entire thing.
