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Re: [ATM] Silvering Problems



Sunday, March 19, 2006, 1:02:23 AM, you wrote:

ARN> Hi All,
 
ARN> I just finished silvering my 12.5" and did not get did not get a hot
ARN> result. Basically I am getting a dull coating. I guess it's what they
ARN> call bloom! But the problem is I am getting it with a very thin coating!
ARN> Do any of the experts out there have any suggestions? 
 
ARN> Silver nitrate quantity I am using is 15 grams.
ARN> Reducing agent is dextrose.
ARN> Temperature is around 24C
ARN> Method is the martin as described in texteraux
 
ARN> Regards,
 
ARN> Alfredo
 
ARN> _______________________________________________
ARN> ATM mailing list http://www.atmlist.net/

Hi Alfredo,

Well I do a lot of silvering, have experience enough. But sometimes the
layer is dull for me too. but mostly it is shiny.15 gramms seems to me
enough. Normally I use sugar solvent for reducing. Clean the mirror is
essencial before silvering, othervise you will whip out the silver
during the process. I use a special agent named methil-chlorid, for
the preliminary cleaning and for the finishing too.
    I is essencial you should pour your silvering solution to the
    mirror in many times. For example if you have 0.5 liter solution
    you have to apply it in 0.7-1 dl dose. After the second dose you
    have to whipe gently the surface by a bunch of cotton, while the
    silver is subsiding. And you have to do it through the process.
    Always keep the surface wet. And if it is finished you have to
    clean the deposit by a mixture of water,methil-chlorid, washer
    solution, and a little amount of rouge. This will remove the haze
    from your silver. And if you wash the surface by water, it will be
    ran away from the silver. And only some drops remains there.
    That's why you need a thick coating and a wery clean surface for
    the good adhesion. Temperature 24 celsius is more than enough for
    the process.  It is a messy job!

-- 
Clear skies!
Attila Schné
                          mailto:yolo@chello.hu

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