From: Ken Watson (watsok@frii.com)
Date: 10/08/02-08:19:07 PM Z
Sandy,
I do not know the answer if lacquer will turn yellow but there are a lot of
bright tintypes around today, 140 years later.
----- Original Message -----
From: "Sandy King" <sanking@clemson.edu>
To: <alt-photo-process-l@skyway.usask.ca>
Sent: Tuesday, October 08, 2002 4:02 PM
Subject: Re: Sealing a Daguerreotype...is it possible?
> 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
> >>
> >>
> >> _________________________________________________________________
> >> Chat with friends online, try MSN Messenger: http://messenger.msn.com
> >>
> >>
>
>
> --
>
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