Cyclododecane

Maja Weichert <majaweichert [at] web__de> writes

>We are planning to consolidate archaeological material such as wood
>and textile, stone, metal, and ceramics for transport using
>cyclododecane. The treated objects will remain sealed in
>polyethylene-foil for about three months, maybe up to one year. ...

The cyclododecane shouldn't be able to sublimate through a layer of
metal foil and a layer of wax. How about wrapping the objects coated
with cyclododecane, in a package of polyethylene foil and aluminum
foil, and putting onto the aluminum foil a fixing coating of wax,
e.g Cosmoloid H80 or Paraffin?

The melting point of the wax of course should be lower than the 61
deg. C of cyclododecane while application.

The foils work as a separation layer, it should be possible to take
off the wax later easily--as well as the aluminum foil (in case you
want to make some x-rays).

Matthias Blana
Archaeological Conservator
Germany


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                  Conservation DistList Instance 17:46
                Distributed: Tuesday, December 16, 2003
                       Message Id: cdl-17-46-002
                                  ***