Hi @Raksakul i dont know if the tone on that stove is due to the way the photo was taken to give it the bronze tone, if it the tone what we see from the picture, it looks like to me an aged patina that has not been polished but has been cleaned with a detergent to remove any dirt but not the patina and then waxed polished
@snwcmpr Interesting though Ken, that there’s the comparison of the brass top of the burner and the distinctly copper/bronze hue of the stove tank, apart from the fuel filler riser threads, also in natural brass. My guess is that the tank’s been spray painted, the riser threads masked off during the process.
John, I don't know about painted because the solder line on the leg brackets still looks silver. something's been done to though, that's for sure.
Some of which are ammonia based, keep well away from stove tanks if you don't want stress cracks! I know you're not advocating this, but it needs saying just in case!
Hi @The Warrior it looks like that to me to, i thought the patina had been cleaned and coat of wax polish over it, but i think you have hit the nail on the head here
Very good point Chris, especially now days as patina is more in vogue over polished brass ware, and when certain repairs like soldering work where a clean surface is needed and some of the patina would be lost, this type of product could be used to blend in so as not show the loss of patina,very well done there for pointing this out
Our city built a new library recently, and the copper roof blinded car drivers in the afternoon sun. Don't worry, they said, the panels will all tint soon, in different tones, because of the treatment they have received. And now they are varying brown tones. It looks to me like this stove has been polished, the lettering masked, and a similar chemical treatment applied to give a smooth patina.
Years ago i worked in stained glass. There is a patina product we would apply to the soldered copper joints. Can’t remember what it was exactly but it was a clear (or bluish) liquid and was applied by just wiping it on. Instant patina. Don’t know if this helps, but that definitely looks as though that stove has been treated with something.
@Raksakul , some things may be lost due to translator. re your: "How to polish my stove to get the copper tone like this one" cleaning/polishing will not get that "look". re word the question: "How to treat my stove to get the copper tone like this one" as suggested i too have seen rub-on "patina" (stain?) treatment to give metal items antique-look (patina-look in the case of brass). Also suggested above, it seems the surface was treated (vs original/cleaned /polished)
I've come across stoves in thrift stores and auctions, which have probably been exessively bathed in vinegar or similar acidic solution. They have been pink or brown to an extent you could think the tanks were pure copper. I suspect if left alone and maybe treated with wax, they would look something like in the pictures.