From: Sandy King (sanking@clemson.edu)
Date: 10/08/02-04:02:51 PM Z
Would not the lacquer also turn yellow?
Another thought is a modern two-part polyurethane. Some of these are
made for the marine industry and have UV filters. They are also very
hard, much harder than any normal varnish I am sure.
Sandy King
>Tintypes were sealed with a Alcohol Lacquer. Perhaps you can do the same
>with a dag. This requires the lacquer and tintype to be at 100 degrees F or
>a little higher. It is a learned technique because if done wrong the finish
>can be mottled, not what you want.
>
>Sandy is correct when he points out that epoxy will yellow and maybe fog
>with exposure to UV.
>
>What is wrong with sealing them between glass? You are straining at a
>problem that has been solved for over 150 years.
>----- Original Message -----
>From: "Christopher Lovenguth" <zantzant@hotmail.com>
>To: <alt-photo-process-l@skyway.usask.ca>
>Sent: Tuesday, October 08, 2002 10:11 AM
>Subject: Sealing a Daguerreotype...is it possible?
>
>
>> I've been trying to think of a way to seal a daguerreotype plate with some
>> sort of substance so that I don't have to have it under glass. Can anyone
>> think of a way to do this? I don't want it to alter the finish so it would
>> have to be some sort of material/chemical that can be applied without
>> severely affecting the finish. It will have to be neutral as well in order
>> not to tarnish the silver. Third it would have to be able to be applied
>> carefully because the slightest touch destroys the image. So I'm thinking
>a
>> sort of liquid that I can either dip the plate in or spray the plate with.
>>
>> I couldn't come up with any ideas that I'm just willing to try. It's not
>> that I want to be able to put my paws all over the image and then be able
>to
>> use window cleaner to wipe them off. But I like the quality of just the
>> plate without glass. The problem is showing it to someone who might not
>> understand that just the slightest touch will ruin it. Plus
>transportation,
>> my own viewing (I'm very clumsy) dust, etc. Right now I have been using
>> neutral plastic film holders sheets. But even with those if you take the
>> plate out of them a couple of times start to scratch the image because of
>> dust particles. Just keeping the plate in the sleeve and looking through
>it
>> you lose subtle qualities.
>>
>> This is not as much of an issue with some of my gilded plates. For some
>> reason some of them have become almost touchable. The thing is I'm sort of
>> select gilding my plates now since a long time in the gold tends to darken
>> my plates too much. I'm now taking my plates out a bit faster then I used
>to
>> because I like the quality and effect, but these images are more fragile
>and
>> can be wiped off with the slightest touch just like the plates that
>haven't
>> been gilded.
>>
>> I'm willing to experiment with a bad plate so suggestions are appreciated.
>> -Chris
>>
>>
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