Colouring brass, bronze and copper formulae - Printable Version +- RomanArmyTalk (https://www.romanarmytalk.com/rat) +-- Forum: Research Arena (https://www.romanarmytalk.com/rat/forumdisplay.php?fid=4) +--- Forum: References & Reviews (https://www.romanarmytalk.com/rat/forumdisplay.php?fid=13) +--- Thread: Colouring brass, bronze and copper formulae (/showthread.php?tid=5273) |
Colouring brass, bronze and copper formulae - Tarbicus - 04-03-2006 http://www.coscosci.com/patinas/patinaformulas.htm Patina Formulas for Brass, Bronze and Copper Gives the formulae and methods for changing the colour of brass, bronze and copper. So if you feel your brass is too pale and bright, could come in useful. Example: Quote:16. Golden Yellow Disclaimer from the Science Company: The Science Company has collected these recipes from a variety of sources through the years. The formulas have not been personally tested so there is no guarantee that they will work. We suggest they be employed on a "trial and error" basis first so their effectiveness can be judged by the user. Re: Colouring brass, bronze and copper formulae - Robert Vermaat - 04-03-2006 Nice link, thanks. Quote:Disclaimer from the Science Company: OOPS!! hock: Re: Colouring brass, bronze and copper formulae - Tarbicus - 04-03-2006 Quote:OOPS!! Shocked Oh just try it on a piece of waste brass I'm looking for a supplier of ferric nitrate in the UK. Also need to get around the issue of how to do it to something that's already attached to lots of other bits. Re: Colouring brass, bronze and copper formulae - Tarbicus - 04-07-2006 Just stumbled across this: Quote:For anyone who's ever been in the military and had to frequently polish brass, one of the things that produce the quickest and very nice colored "patina" is the human fingerprint. Just one touch on a piece of shiny brass or copper will start showing a nice color in a matter of hours - LOL. So, using that concept, I came up with something that combines the principle elements of a fingerprint: water, salt, oil, acids, mild caustics, and amino acids. [url:qbt67v44]http://www.geocities.com/teeley2/coloring.html[/url] |