Hello all!Just want to make some comments on few posts here.ġ.Brass and Bronze are alloys,both similar and different.Brass has a more yellowish color,bronze.will depend on the composition.Copper heavy bronze is of more reddish color,while Aluminum Bronze is yellow and will give greyish patina overtime.Price wise,I do not think there is big difference for sourcing the raw material for production.Bronze tends to be more expensive due to the fact that it is all "trendy" now to have a bronze watch.Ģ.I would suggest to limit your tries with submerging the watches in those solutions- LoS, Vinegar and Ammonia,you might damage the gaskets.I recently "killed" my Bob Wellson Bronze Seal. I'll try with my vinegar couple of times more and share the result. (I'm not sure if we can call this a forced, accelerated patina though ) Like an old diving helmet, I think repeated treatments would patinate polished brass (or bronze).Īt least a little coloring left each treatment would accumulate, and natural patina look would appear. Thus only an easily removable thin coating is made. The first layer of oxidized brass seems, however, protecting the inside from chemicals to penetrate further, ![]() My understanding is, oxidized layer of brass has to be thick enough to reveal shiny dark surface after polishing. ![]() just darker, all in all!īut I guess copper sulfate (by egg or LoS) seems much stronger in reaction rate and binding to the surface,Īnd as Pallet Spoon said somewhere, polished surface tends to loose patina easily. I used vinegar vapor, clorox vapor for inducing Cu(CH3COO)2 (green) to CuO (yellow-brown) orĬuCl2 (brown-blue). Maybe because I didn't use proper or strong enough chemicals? ![]() Trying to wipe off excessive patina on edges with CapeCod just removed majority of patina unwantedly and easily.
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