Storing coins

Victoria Gill <victoria.gill [at] endangeredheritage__com> writes

>There are a few suppliers of polypropylene or polyethylene sleeves.
>However for coins again consider 'Intercept' a corrosion inhibiting
>plastic. Depending on the frequency of use of the coin collection
>intercept may allow for safe long term storage after they have been
>treated. If regular visual use of the coins is required then this
>might be an impediment to viewing.

Whether sleeve visibility is a necessity or not, you would be better
considering CRIOS sleeves. Unlike CI (which only purges SO2 based
pollutants), CRIOS is formulated to purge SO2 and NO2 based
pollutants. It also absorbs organics such as formaldehyde and has a
built in desiccant. The formulation is extruded into unplasticised
poly-ethylene for the sleeves and the sleeves, although tinted, are
transparent, allowing the contents to be examined without removal.

CRIOS is also available as a filtration system for museum cabinets.

Supplier's website: <URL:http://www.orla-solutions.com/>


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                  Conservation DistList Instance 23:44
                    Distributed: Sunday, May 9, 2010
                       Message Id: cdl-23-44-003
                                  ***