Subject: Preservation of an ammonal mine
Mark Vine <100436.3447 [at] compuserve__com> writes >I am posing this enquiry on behalf of a bomb disposal expert >colleague without access to the DistList. > >Has anyone experience in the preservation of 1st World War ammonal >mines or allied materials? The mine in question was recently removed >from a deep and extremely wet trench, with the heavily packed and >padded-out explosive contents removed. > >The question posed is what might be used to preserve the now >dried-out macintosh material (very similar to the linen backing >sometimes found backing old maps). Although we at Conservation By Design <URL:http://www.conservation-by-design.co.uk> have no experience of dealing with ammonal mines we have supplied a client with oxygen barrier film and oxygen scavengers for the long term preservation of a Victorian rubberised raincoat which is in surprisingly good condition. Initially we supplied BDF 200 barrier film and Ageless ZPU oxygen scavengers but a few years later, following technical advances to scavengers and barrier films the raincoat was transferred to a Mitsubishi Escal. Transparent Barrier Bag which gives a higher resistance against moisture than other transparent films. The scavengers used for the second sealing were Mitsubishi RPK. which are an advanced form of oxygen scavenger in that they are moisture neutral and also contain gaseous pollution scavengers. This system seems to have been working well and as a follow on to the storage of the raincoat we have worked with our partner company Rothstein Vitrinen GmbH to produce an oxygen free showcase for its display should it be required for exhibition. Stuart M. Welch Managing Director Conservation By Design Limited Timecare Works 5 Singer Way Woburn Road Industrial Estate Kempston Bedford MK42 7AW +44 1234 853 555 Fax: +44 1234 852 334 *** Conservation DistList Instance 15:17 Distributed: Tuesday, August 14, 2001 Message Id: cdl-15-17-006 ***Received on Tuesday, 14 August, 2001