UV filters

Michael Maggen <maggen<-a t->netvision< . >net< . >il> writes

>Jeanne Drewes <jdrewes<-a t->jhu< . >edu> writes
>
>>I am looking for recommendations for uv protection for glass on
>>table cases.
>
>In our museum we use UV films filters for the last nine to ten
>years. They prove to be a very effective in reducing U.V (nearly
>95%) from the natural light sources.
>
>This product, CL - 400 -X, is produced by Madico(r) L.T.D.

The film mentioned by our colleague in Israel is indeed a viable
answer to the question of protection of artifacts in display cases
from UV light. However, it is also a viable answer to the protection
of artifacts from a "smash and grab" theft from that case.

A number of companies make and install this film in various
countries throughout the world, but it is marketed and sold as
protection for the glass surfaces of a building against glass
breakage by various means--including bomb blast.  The film is an
excellent means of protecting a cultural institution from
unauthorized intrusion and protecting the artifacts inside the
institution (historic structure or modern building) from UV light.
However, care should be taken in discussing this film with the firms
which make the product due to the fact that not all of this "safety
film" has UV protection properties and some films are better than
others.

Roger Wulff
Museum Services International

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                  Conservation DistList Instance 11:15
                  Distributed: Friday, August 8, 1997
                       Message Id: cdl-11-15-001
                                  ***