There are many article on the web if you search "re-silvering a mirror" however if you want to silver a fired item that you can not get to the back face of the mirror the processes won't work. In astronomy most reflecting telescopes use what is known as a front face or first face mirror. The only way I know of making a first face mirror is by sputtering. In sputtering you put the object in a bell jar with an aluminum filament and draw a deep vacuum and then pass a high voltage through the aluminum filament causing it to vaporize. The vaporized aluminum will deposit on any surface inside the bell jar and produces a very bright mirror finish. Unfortunately its not very durable; the aluminium is very soft and extremely thin. Using the chemical silvering it will oxidize. the mirror stays bright because oxygen is excluded from the mirror surface because it is sealed by the glass. The mirroring eventually breaks down and that is when antique mirrors start to have black spots. I have had luck creating bright metallic surfaces with metallic lustres but those are usually lowfire and again not very durable. Good luck Keep checking back because someome else may have another idea on how to do it.
Hi, I have read quiet a few postings on mirror silvering, that is the reason I posted here. If I am not mistaken, glaze is a form of glass after being fired. The method of front-face mirroring is exactly what I am referring to, not aluminium surfacing. One of the methods was to dip the glass in a solution of silver nitrate that deposits onto the surface of the glass. It has to sit in the solution for about 15 to 20 minutes then let dry. Yes, unfortunately it has to be re-silvered almost every 6 months, but I can live with that. I just need to find out if the fired glaze will react like the glass and accept the silvering. I would prefer not to waste time making the mold and pouring the slip ... yadda, yadda, yadda ... without knowing how the fired glaze would react first.