How to protect Brass from Corrosion?
In most cases, if brass is exposed to the atmosphere, tarnishing will be the most severe form of corrosion encountered.
Tarnish can be prevented by coating copper with a clear lacquer.
A black oxide chemical conversion coating, provides a good base for adhesive bonding or for organic cmatings. It is, however, primarily a decorative coating.
Normally, copper and copper alloys are not painted; however, they may be painted for decorative or other purposes.
General or uniform corrosion is not a problem in most of the environments in which copper and copper alloys are used.
If general corrosion is a problem however, one of the
following prevention methods should be applied:
1. Increase the thickness of the cross section to obtain
an adequate service life.
2. Choose a more resistant material or copper alloy.
3. Choose from the various types of coatings that
may be useful.
Corrosion problems in the application of copper alloys
are usually the result of corrosion types like crevice corrosion, stress-corrosion
cracking, and dezincification.
see also
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