I read the product description on Ultra Ever Dry and it contains a proprietary nanoparticle polymer suspended mostly in xylene and other solvents. It is NOT transparent and comes in a semi-opaque white unless another color is specified. In outdoor environments it lasts 2 - 6 months.

Since stone is porous, and historic and ancient stone even more so, there is no scientific information on how this product would interact - especially nanoparticles and pigments soaking in and staining the stone - and no long term ageing studies which are a standard part of conservation science studies of materials.

So I would not consider using this product on a work of art or historic object.

Again - define the condition issue first then find the safest way to address it.

Cheers!
Dave

David Harvey
Senior Conservator & Museum Consultant
Los Angeles CA
www.cityof angelsconservation.weebly.com

On Wed, May 1, 2013 at 10:48 AM, Barbara Hass <[log in to unmask]> wrote:
here is the MSDS for the base coat (there is a top coat product also)
http://www.ultraeverdrystore.com/how-to-use/base-coat-safety.pdf

-----------

military personnel are discussing this product and here is one quote which fits your needs
----“The SE 7.6.110 formula’s longevity in use is susceptible to environmental conditions (UV / abrasion). This coating will generally last 2-8 months in direct sunlight and outdoor conditions before recoating of the top coat would be required...."

another entry mentions the change in color of a surface.

Read more: 
 -------------------------

here is a commercial site which includes info on care

-------------------
more advice

-----------------------------------------


Best wishes, Barbara, retired librarian


-----Original Message-----
From: Gail Anderson <[log in to unmask]>
To: MUSEUM-L <[log in to unmask]>
Sent: Wed, May 1, 2013 10:54 am
Subject: [MUSEUM-L] Ultra Ever Dry

Colleagues,

Does anyone have any knowledge of this product?  It is a waterproofing coating 
and we are considering it for a marble sculpture that will be outside but wanted 
to check if anyone has used it or knows why one shouldn't.

Thanks for any help.

Best,

Gail


Gail Kana Anderson
Deputy Director/Curator of Collections
Fred Jones Jr. Museum of Art, the University of Oklahoma
555 Elm Avenue; Norman, OK  73019-3003
t. 405.325.1664; f. 405.325.7696

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