aliluke

Hi
Another member suggested I post this here. Like you - presumably - bright copper on hull plates doesn't sit well to my eyes. But there is a way to age copper very quickly - in three days - if you have the nerve to do so. I offer this technique at your own risk. When I used it on my model of HMS Fly I had no idea if it might destroy all of my work to date. I tested it on some spare copper plates before embarking on the main experiment but it still felt risky.
 
Very bright copper plating when the install is complete. By itself it might take a year or two to tarnish. Why wait?



My wife who is an architect used to work on high end resorts in Bali. Many had copper roofs but the developers hated the shine. Solution? Paint them with horse urine (whose job that was I have no idea). The copper tarnishes very quickly. I don't own a horse and even if I did I wouldn't want to collect its pee but...I make urine too so decided it was worth a try. Not a pleasant smelling chemical although it's a smell that I'm kind of used to until I flush.

To ensure it didn't soak into the upper boxwood woodwork, or anything else., at first I did a very intense job of masking (I don't have a picture of that) but I found out that I didn't need it and it actually wicked my pee up into the woodwork which caused a panic. So I took off the masking. Then I brushed my urine onto the copper plates with fingers crossed. The reaction is very fast, in some areas it was almost instant. Some verdigris happened and then some spots of bright copper remained. You can wipe back the verdigris and the bright copper bits turned out to be CA glue residue which is easy to scrape off. Early applications. It tends to bead (first photo) and I just carefully spread it ot with a brush.

Verdigris kicking in on first application. You can also see the little bright spots where glue is covering the copper.

Second application. the copper is turning brown but more bright spots appear. Get rid of the glue.
 
Applications continued - two per day which suited my bladder. Between coats I wiped it off with water before applying my urine. Still some bright spots to work on...

I was unsure if my urine would keep eating at the copper so I wiped all of it off with water and then sealed the copper with Testors Dullcote. End result after three days. Variable with some verdigris but I like the look. Eight years later it still looks the same.
 
Port:

Starboard:

 
Good luck if you want to try. It worked for me but no guarantees.
 
Cheers,
Alistair