Re: [ATM] Silvering Problems

[Attila Schné <yolo@chello.hu>]

Sunday, March 19, 2006, 5:09:29 PM, you wrote:

ARN> Hi Attila,

ARN> Do you mean I have to divide my silvering solution and coat the mirror
ARN> repeatedly? Do I have to remove the mirror from the current silvering
ARN> solution when I apply the second? Could you please advise me a bit more.

ARN> Regards,

ARN> Alfredo


ARN> -----Original Message-----
ARN> From: Attila Schné [mailto:yolo@chello.hu] 
ARN> Sent: Domingo, 19 de Marzo de 2006 8:42
ARN> To: Alfredo Rainho Neves
ARN> Cc: atm@atmlist.net
ARN> Subject: Re: [ATM] Silvering Problems



ARN> 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
ARN> hot
ARN>> result. Basically I am getting a dull coating. I guess it's what
ARN> they
ARN>> call bloom! But the problem is I am getting it with a very thin
ARN> 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/

ARN> Hi Alfredo,

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


Hello Alfredo,

Yes! You have to divide your solution. When if you look the solution
and its starts to turn from brown to clear and some bunch of brown
clusters starts to appear. In that moment you have to pour out the
solution and immediatlelly apply new one.But during the process you
have to whip gently the surface by a cottont bunch! to remove the most
part of the haze!   And if all the solution is off. Than keep the
surface wet and apply the cleaning process.

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

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