The colors produced vary from brown on white metal, silver and tin/lead to purple, grey to black, and gun metal blue on copper, brass and bronze.
Liquid concentrate used at room temperature as an oxidizing solution on pewter, tin, and lead. Control blackening depth by varying concentration and immersion time.
Insta-Blak Z-360 is an easy-to-use, quick-finish room temperature blackening process for zinc and cadmium-plated parts. One gallon can coat approximately 200–300 sq. ft. of cadmium or zinc parts.