Weathering brass screws in a hurry

I have a bag of brass screws that will be used to screw into copper on roofing, trim, gutters, etc. We are needing them to blend in a bit better. My dilemma is that the construction company needs me to get this done by Monday which is 3 days. I have put them sitting in Muriatic acid for a day now and all that I see is a light yellow tint they have take, kinda like sulfur....I need them to turn more of a blackish/bronzish color if possible. PLease help me! I am desperate for any ideas you may have.

Thanks,

Heidi Bain
Construction company employee - Rollins, Montana, USA
2007

2007

Hello Heidi. liver of sulfur ⇦ on eBay or Amazon [affil link] will significantly darken brass.

This public forum isn't the right resource when a problem is urgent though; the best responses may come weeks or years from now :-)

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.

2007

Try a little ferric nitrate. I understand that produces a nice brown on brass.

Dave Wichern
Consultant - The Bronx, New York

Q, A, or Comment on THIS thread -or- Start a NEW Thread

No dead threads!
Your Q, A, or Comment puts this thread on The Finishing.com HOTLINE.

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: