ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

Aloha,

Check out the NPS exhibit conservation website:

http://www.nps.gov/hfc/products/cons/ex-con.htm

Their "Exhibit Conservation Guidelines" can be ordered from the site
and/or you can get consultation from them. They are more than worth
the $50 it costs for the CD. I've found it to be an invaluable resource.

Stainless steel and acrylic are good materials for your project.
Silicone off-gasses acetic acid among other things and you should stay
away from it. I can't offer an alternative without knowing
more details about how you plan to use it.

Richard Duggan

PS- I would have sent this off list, but don't know your email address.


On Jun 29, 2006, at 1:32 PM, SUBSCRIBE ISEN-ASTC-L R Klein wrote:

ISEN-ASTC-L is a service of the Association of Science-Technology  
Centers
Incorporated, a worldwide network of science museums and related  
institutions.
************************************************************************ 
*****

Hello, can anyone tell me how I might find out more about materials that

could degrade biological specimens? Specifically, we are creating a  
small

display for some pinned butterflies and need to know if steel, acrylic  
or

silicone inside the sealed case might affect them.

Thanks,

Rhoda Klein
Exhibits and Programs Department
Science World British Columbia
TELUS World of Science
1455 Quebec Street
Vancouver, BC
Canada V6A 3Z7

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