BIR 13432 SUPER BLUE LIQD 32OZ

Birchwood Casey 13432 Super Blue Liquid 32 oz. Bottle
Birchwood's Super Blue Liquid Gun Blue is designed for blueing high polished steel parts and hardened steels containing nickel and chrome alloys (except stainless). Super Blue is the blackest blue. Use caution to confine the solution to the area to be reblued, as it will have an effect on the existing blue.