A water-based polyurethane is archival?  What latex are you talking about?
 What I was thinking of was for a case would not be panted at all.  I was
thinking of having six sides of the uv blocking plexi and a piece of wood
on each edge to hold the pieces together.  I was wondering about an
archival sealant of some type to go on the inside of the case to attach
the edges of the plexi pieces.

Beau Harris




> Beau,
>
> You can use a water-based polyurethane sealant but ensure that you leave
> plenty of time, at least three weeks, for it to cure.  Also, place air
> vents
> in the plexi and put a barrier between the artifact and the latex,
> something
> like Mylar.
>
>
> Becca Hiller
> Curator/Archivist
> Santa Fe Trail Center
> www.santafetrailcenter.org
>
> -----Original Message-----
> From: Museum discussion list [mailto:[log in to unmask]] On
> Behalf
> Of George Harris
> Sent: Friday, October 12, 2007 6:56 AM
> To: [log in to unmask]
> Subject: [MUSEUM-L] Sealing wood
>
> Hello,
> I have a couple of questions.  Are there any ways of sealing new wood so
> that none of the acid or anything gets out of it into the interior of a
> case?  I was thinking of making a couple of new, small cases with some UV
> blocking plexiglass.  What about a calk-like material that is archival to
> go between the pieces of plexiglass?  Is there such a thing?
> Also, I am part of the registrar's comittee and cannot seem to get onto
> their listserv.  Does anyone here know how to do that?
> Thanks.
>
> Beau Harris.
>
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