I have nothing but other institutions' words for it, but our museum
decided to go with 3M's Scotchtint window films.  They are applied with a
water-soluble adhesive, and are thus removable with application of damp
cloths.  They are washable and come in a range of filtration strengths,
from UV only to increasingly strong protection from IR and visible light.
Our regional sales people have a long list of museum and archival
references so we could talk with people who knew the museum angle better
then the salesman did.

I do have some warnings on the application process, though -- there was
water involved (to soften the adhesive), and I had to spend a lot of time
moving collections away from the area where they were working.  The
workmen needed constant supervision to make sure they follwed my
instructions.  It was nerve-wracking in that regard, but we are happy with
the results.  BTW, we are also a historic house with glass dating to ca
1911 and before.  They can even apply the film to cracked panes, and it
helps keep them intact and in place until you can work out a replacement.

Best of luck,

Juliette Rogers
Stephen Phillips Trust House
Collections Manager

On Thu, 12 Jul 2001, Redcliffe State Historic Site wrote:

> Greetings,
> After searching through the archives of Museum-L, it seems that there is
> not a consensus on which type of the UV filtering materials is the best
> for the old glass in our historic house museum.  So far, we have tried
> UV filtering plexi-glass cut to fit in individual panes and sheets cut
> to fit an entire sash.  This is both expensive and a pain to keep clean,
> especially when the lady bugs invade each year, but it does work well.
> As an alternative, I have tried to locate a retailer of clear UV filters
> in a roller blind. No luck.
>
> My question is this, has anyone used CPFilms "UV Clear or Museum Clear"?
> It is supposed to be easier to remove than the 'old' direct films.
>
> Thanks in advance,
>
> Fielding Freed
> Redcliffe Plantation State Historic Site
>
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