Polishing and care of Brass on teen and preteen antique automobiles.?
March 6, 2010 - 4:00 am
We have been working with brass for many years on early autos but am looking for someone who is "in-the-know" concerning brass cleaning without a heck of a lot of work. We are more interested in the use of chemicals. Buffing speeds and tricks for polishing brass, thin, radiators and lamp bonnets.
We anneal, weld, solder, bend, and have cast brass replacement parts. Do not want a barrage of questions, please. Until we have some answers as that takes time and time is something short on this end as we restore and fabricate origional wooden bodies and are a compleate restoration facility.
Good for you! Just one question…
March 6th, 2010 at 9:10 am
Good for you! Just one question…
References :
March 6th, 2010 at 9:50 am
Your not talking about model autos,I hope.Now I have some knowledge on this but I don’t know what you have available so I start with the most aggressive.You need concentrated orthophosphoric acid and strong nitric acid,mix them 95% phosophoric with 5% nitric,1st wash the parts well leave no scale (cos this process is quick and eats quickly leaving a mirror finish).Have a very good supply of water in a tank and running(hose).dunk parts 20 to 30 seconds,wash off quick as possible and rinse very thoroughly.Dry off.Parts should be chemically polished and perfect .Try it out with scrap first to see if you can do what you want.Getting rid of the effluent might be a big problem unless you have good facilities.I also have methods available for iron and for stainlees steel.
If the foregoing is not availableto you then sand blasting(low pressure using fine sand) followed by blasting with wood chips or say rice or corn could buff the finish?hope it helps,I used to use the chemical method a lot tp make clean high vacuum pipework.
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Industrial and technical experience.