brass Colouring.

[Gordon Watson]

I  have used a brass blackener which is Selenium Dioxide
[5%] W/W  Brass should be clean and degreased before immersion, takes about
8 minutes max.bestresults seem to be drying using heat and rubbing of
surplus with soft clean cloth ,followed by a second treatment.this will
blacken copper /brasses/ but not all bronzes and not silver solder.
Trade name is "Ebonol" The coating /colour is copper oxide.

                                     Gordon Watson.