Ian Report post Posted December 5, 2008 I need to tarnish or antique a few brass double cap rivets to match the rest of the hardware on a project (no time to order antique brass rivets). Anyone know a quick and easy was to get a little tarnish going? Quote Share this post Link to post Share on other sites
TwinOaks Report post Posted December 5, 2008 The tarnish is just a little layer of oxidation, so anything that accelerates that should work. Vinegar? Quote Share this post Link to post Share on other sites
celticleather Report post Posted December 5, 2008 Black for brass: 2oo gm copper carbonate 1 lit ammonia / 25%/ Cold immersion! Brown for brass: 5 gm copper sulphate 5o gm potassium permanganate 1 lit water Hot immersion(9o C)! 2-5 min. Yellowish brown to orange/red for brass 100 gm cooper sulphate 5o gm sodium chlorate 1 lit water Hot immersion (9oC)! or acetic acid will also work. Quote Share this post Link to post Share on other sites
