Janet,
 From Gretchen Anderson, Conservator at the Carnegie Museum of Natural 
History, and teacher of our Keeping Historic Houses & Museums Clean 
course: The formula - It is flexible - Try 1:1 - Maybe try slightly less 
isopropanal.

-- 
Brad Bredehoft
CEO
Museum Study, LLC
www.MuseumStudy.com


On 11/3/2017 8:00 AM, Johnson, Janet wrote:
> Can you share the formula, the ratio of isopropanol and deionized water?
> Thank you
>
> Janet R. Johnson | Curator
> http://twipa.blogspot.com/
> Visit our blog to learn about This Week in Pennsylvania Archaeology!
> Additional information is located on our web site at; http://www.phmc.state.pa.us/portal/communities/archaeology/
>
> -----Original Message-----
> From: Museum discussion list [mailto:[log in to unmask]] On Behalf Of Brad Bredehoft
> Sent: Thursday, November 02, 2017 3:37 PM
> To: [log in to unmask]
> Subject: Re: [MUSEUM-L] Glass cleaner for exhibit cases
>
> Rachel,
> Gretchen Anderson, Conservator at the Carnegie Museum of Natural History, and teacher of our Keeping Historic Houses & Museums Clean course suggests cleaning glass and plexi with isopropanol and deionized water. Use a microfiber cloth and use the liquid sparingly spraying it on the cloth, not on the glass.
>

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