We've finally found a replacement for fans of A-West's "Blacken-It". With AK-Interactive's Metal Burnishing fluid, you can naturally weather and rust white metal, brass, and other metals. Just dip the tracks in the liquid for a few seconds and the metal will begin to appear dark and rusty very quickly, easily and effortlessly. You can vary the effect using different dilutions and varying lengths of soak. Using less product, you can achieve even better results than with our previous formula. 100 mL bottle.