This is a message from the Pest Management Database List. To post to this list send it as an email to [email protected] To unsubscribe please look at the footer of this email. -----------------------------------------------------------Monika-
I have freeze-dried both hefty Chinese lacquer, as well as thinner coatings which appeared to have had no ground layers. These were all waterlogged archaeological artifacts which had been pre-treated with PEG 200 and 400. Everything was problematic, and the trouble started in the pre-freezing for 36 hours before the drying started, so it wasn't caused by only pulling the vacuum on these materials. The thicker layers would crack in spots, and the thinner lacquers could curl at the edges (think charred, wispy newspaper). This anecdotal information may not be too much help to you, but I thought it was worth posting. I would be more concerned about what the coating(s) are, since the chariot is from the 1980's. Are you sure it is urushi? Auto body lacquer? (no joke...) And any mixture of coatings and substrates could be problematic, with different moisture contents and expansion/contraction rates. I would opt for the anoxic bubble Good luck! feel free to e mail me back Kate Singley Conservation Anthropologica Atlanta GA USA [email protected] -----Original Message----- >From: [email protected] >Sent: Apr 1, 2009 6:59 AM >To: [email protected] >Subject: Re: [pestlist] freezing Japanese laquer > >Why would you want to freeze the lacquer ware? What's the pest? > >Tom Parker > > >-----Original Message----- >From: Monika Harter <[email protected]> >To: [email protected] >Sent: Wed, 1 Apr 2009 6:03 am >Subject: [pestlist] freezing Japanese laquer > > > > >Does anyone have experience with or an opinion on freezing Japanese lacquer >ware? The object in question is a Japanese festival chariot from the 1980’s, >comprised of a number of different materials, some of which are black >lacquered wood. The composition of the lacquer has not been determined (we >don’t know if it is Urushi or not), but at this point of time it is in very >good condition. > >Thanks! > > > >Monika Harter > >Collections Conservation & Care > >Horniman Museum > >100 London Road London SE23 3PQ > >[email protected] > >Phone +44 (0)20 8699 1872 ext.126 > >Fax +44 (0)20 8291 5506 > > > > > >Silver Award Winner for Visitor Attraction of the Year 2007 (Visit London >Awards) > >For further information visit our website www.horniman.ac.uk > >The Horniman Public Museum & Public Park Trust. 100 London Road, London SE23 >3PQ. >Registered as a charity in England and Wales. Charity registration number: >802725 >Company registration number: 2456393 > > > >Disclaimer >This e-mail (and any attachments) is confidential and is intended for the use >of the addressee only. It may >contain personal views which are not the views of the Horniman Museum, unless >specifically stated. If you >have received it in error, please delete it from your syst >em, do not use, copy or disclose the information in >any way nor act in reliance on it and notify the sender immediately. Please >note that the Horniman may >monitor e-mails sent or received. It is the recipient’s responsibility to >ensure that appropriate measures are >in place to check for software viruses. ------------------------------------------------------------- To send an email to the list, send your msg to [email protected] To unsubscribe from this list send an email to [email protected] and in the body put: "unsubscribe pestlist" Any problems email [email protected]
