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Gallery, Projects and General => How do I?? => Topic started by: Bob Badger on August 28, 2013, 06:24:34 AM

Title: Brass corrosion
Post by: Bob Badger on August 28, 2013, 06:24:34 AM

I have made some brass doorsteps for a friend and lacquered them with automotive lacquer. They have started to corrode. what is the best way of ensuring that they are protected for the sake of the friendship  and my reputation as a fixer of all things mechanical. Bob Badger

Title: Re: Brass corrosion
Post by: Bluechip on August 28, 2013, 07:09:38 AM

Bob
 
No idea what the 'Automotive Lacquer' is, I have used this :
 
http://www.amazon.co.uk/Rustins-Metal-Lacquer-Clear-RUSCML125/dp/B001GU2EN4 (http://www.amazon.co.uk/Rustins-Metal-Lacquer-Clear-RUSCML125/dp/B001GU2EN4)
 
which seems fairly durable outside. I doubt if ANY lacquer is truly permanent for exterior use.
 
How did you prepare the brass before applying the coating ??
 
I used pumice powder. I would guess that 'Vim' might be OK. If you use a grease based jollop like 'Autosol' you're wasting your time ...
 
Dave BC
 
 

Title: Re: Brass corrosion
Post by: Fergus OMore on August 28, 2013, 07:37:37 AM

Pity! I was in Northampton a few days ago. Actually at Knuston Hall with a crowd of brass/woodwind instrument folk- half of them experts on lathes etc!

Ah well? So I 'd strip the brass back to 'Bullsh1t clean and get some decent musical instrument brass lacquer.

No idea what Northampton has but there are a number of suitable firms in nearby(?)  Cambridge.