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Thanks very much for that tip re tape adhesion, Joel. I will certainly
remember that.
Best regards.
Hazra C. Medica
Advisor/Consultant on Cultural Matters
Ministry of Trade, Industry, Commerce & Consumer Affairs
Ministry of Sports, Culture & National Festivals
St. John's, Antigua W.I.
________________________________
From: pestlist-ow...@museumpests.net <pestlist-ow...@museumpests.net> on behalf
of Voron, Joel <jvo...@cwf.org>
Sent: Thursday, 09 November 2017 06:28:58
To: pestlist@museumpests.net
Subject: Re: [pestlist] Suggestions re solutions for termite infestation in the
tropics
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Test tape for adhesion to desired plastic bags or sheetings beforehand on a
practice/Faux object throughout the whole process if materials(tape or bags)or
cold treatment is new to you. Some tapes appear to stick well and can fail
during the freeze/rest cycle. JTV
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080<tel:757-220-7080>
Cell 757-634-1175<tel:757-634-1175>
E-Mail jvo...@cwf.org<mailto:jvo...@cwf.org>
[X]
On Nov 8, 2017, at 5:19 PM, Alex Roach
<alexro...@modifiedatmospheres.com.au<mailto:alexro...@modifiedatmospheres.com.au>>
wrote:
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Hi Todd
Regarding the thickness of the plastic wrap/bags, thicker garbage bags/sheet
plastic is used mainly as it is stronger when handling and there is less
moisture transmission through the film than with thinner films. As a rough guide
- disposable shopping bags/bin liners are about 1ml (you should double bag if
using this type)
- ziplock-style sandwich bags are about 2ml (and some have a moisture barrier
layer)
- 'tough' garbage/garden refuse bags may be 4-6ml. Many of these types of bags
have reinforced layers that adds to their strength.
You're not creating an oxygen barrier so holes and tears aren't such an issue.
If you find scrapes or tears just repair them with tape.
One more thing. When you're freezing a lot of items you may find water
building-up under and between bags of frozen items. You can reduce this by
using fans to keep air moving over the objects post freezing.
Best wishes
Alex
On Thu, 9 Nov 2017 at 7:53 am, Todd Holmberg
<tholmb...@artsmia.org<mailto:tholmb...@artsmia.org>> wrote:
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Hello Everyone,
Good thread- very informative.
Since the topic of freezing is going on here, I was wondering if I could pick
your brains on a few things. Hopefully this doesn't take us to far off topic.
1) Does anyone here have strong opinions about the mil of plastic used in
freezing treatments? Is there a good "go to mil" that you like for freezing
bags? Is the only downside to a thinner mil its greater likelihood of tearing,
or does it have a less desirable affect in other aspects of freezing too?
2) How big of a problem is it, when loading a freezer, if a small scuff is
made in the plastic? If there is any hole/scuff in the plastic membrane (even
a small fraction of an inch) does that compromise the object inside? If the
scuff is made only on the outer bag, and it is "double bagged", does that outer
bag need to be taken off and "re-bagged"?
If anyone has opinions on these issues I would appreciate your feedback.
Thanks!
Todd Holmberg
Collection Maintenance Technician
Minneapolis Institute of Art
On Wed, Nov 8, 2017 at 2:13 PM, Hazra Medica
<hazra.med...@ab.gov.ag<mailto:hazra.med...@ab.gov.ag>> wrote:
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Excellent idea, Joel! Will save so me much time and tears.
Many thanks.
Hazra C. Medica
Advisor/Consultant on Cultural Matters
Ministry of Trade, Industry, Commerce & Consumer Affairs
Ministry of Sports, Culture & National Festivals
St. John's Antigua W.I.
________________________________
From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>
<pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>> on
behalf of Voron, Joel <jvo...@cwf.org<mailto:jvo...@cwf.org>>
Sent: Wednesday, 08 November 2017 09:09:25
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: Re: [pestlist] Suggestions re solutions for termite infestation in the
tropics
This is a message from the Museumpests.net<http://Museumpests.net> List.
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If you can make a small breech in the wrap without risking the pieces you
could get the desiccant packets in without the hassle of unwrapping them and
just tape up the slit. JTV
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080<tel:(757)%20220-7080>
Cell 757-634-1175<tel:(757)%20634-1175>
E-Mail jvo...@cwf.org<mailto:jvo...@cwf.org>
[1474552137245_IMG_0499.JPG]
________________________________
From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>
<pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>> on
behalf of Hazra Medica <hazra.med...@ab.gov.ag<mailto:hazra.med...@ab.gov.ag>>
Sent: Wednesday, November 8, 2017 8:02:39 AM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: Re: [pestlist] Suggestions re solutions for termite infestation in the
tropics
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Joel,
Thank you for this bit of information. I'll unwrap and re-wrap with the
necessary precautions to avoid causing any unnecessary harm.
Best regards.
Hazra C. Medica
Advisor/Consultant on Cultural Matters
Ministry of Trade, Industry, Commerce & Consumer Affairs
Ministry of Sports, Culture & National Festivals
St. John's, Antigua W.I.
________________________________
From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>
<pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>> on
behalf of Voron, Joel <jvo...@cwf.org<mailto:jvo...@cwf.org>>
Sent: Wednesday, 08 November 2017 06:31:25
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: Re: [pestlist] Suggestions re solutions for termite infestation in the
tropics
This is a message from the Museumpests.net<http://Museumpests.net> List.
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If the RH inside the bags is 30% to 50% mold should not be an issue. Usually
60% and above is where you run into problems. JTV
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080<tel:757-220-7080>
Cell 757-634-1175<tel:757-634-1175>
E-Mail jvo...@cwf.org<mailto:jvo...@cwf.org>
[cid:]
On Nov 7, 2017, at 5:25 PM, Hazra Medica
<hazra.med...@ab.gov.ag<mailto:hazra.med...@ab.gov.ag>> wrote:
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Hi Alex,
Thank you so much for taking the time out to respond to my questions. I've
indeed been thinking freezing might be my best option. I do have another
question given your mention of the risk of mould. How long is it safe to have
these items bagged/wrapped tightly in plastic before we subject them to
freezing? I am trying my best to move rather quickly with this project but
sometimes things go slow.
Best regards.
Hazra Medica
Advisor/Consultant on Cultural Matters
Ministry of Trade, Industry, Commerce & Consumer Affairs
Ministry of Sports, Culture & National Festivals
St. John's, Antigua W.I.
________________________________
From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>
<pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>> on
behalf of Alex Roach
<alexro...@modifiedatmospheres.com.au<mailto:alexro...@modifiedatmospheres.com.au>>
Sent: Monday, 06 November 2017 20:31:30
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: Re: [pestlist] Suggestions re solutions for termite infestation in the
tropics
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Hi Hazra
Bagging infested/suspect materials and freezing will be a great approach for
treatment of the items.
Storing the (treated) materials up off the floor post freezing (i.e. on blocks
or tables) will enable you to keep an eye out for further termite attack.
If you're dealing with drywood termites then even small wooden items can
contain colonies, but again freezing would be a suitable approach (assuming
items won't be damaged by freezing).
You could go down the low oxygen path for treatment, but it's much more
expensive. One large bag could be used to treat the entire collection, or you
could make several smaller bags. The small bag approach provides you with a
stable storage environment for the collection while you work through
cataloging, etc. Another major advantage is that you won't be facing a mould
problem when it comes time to open the bags (a real risk when leaving items
bagged in pe in poor conditions).
As for treatment of the termite infestation (if you're looking at staying in
the same building) it will depend upon the species of termite that is
attacking, building type and other factors. Assuming that they're subterranean
termites then baiting may be suitable as it will allow you to destroy the
colony, but you may also be able to locate and destroy the nest directly.
Best wishes
Alex
On Tue, 7 Nov 2017 at 2:11 am, Hazra Medica
<hazra.med...@ab.gov.ag<mailto:hazra.med...@ab.gov.ag>> wrote:
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Thank you so much for that note, Joel. Admittedly, my main goal right now is
attempting to ensure that we're left with something to preserve until I get the
"go ahead" to have the items removed and the suitable expert brought in to
safeguard this very valuable collection.
Hazra C. Medica
Advisor/Consultant on Cultural Matters
Ministry of Trade, Industry, Commerce & Consumer Affairs
Ministry of Sports, Culture & National Festivals
St. John's, Antigua W.I.
________________________________
From: Voron, Joel <jvo...@cwf.org<mailto:jvo...@cwf.org>>
Sent: Monday, 06 November 2017 10:20:56
To: Hazra Medica
Cc: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: Re: [pestlist] Suggestions re solutions for termite infestation in the
tropics
Key note ..... wooden items would need to have a moisture content less than 19%
in order for bag/isolation to be faster and a total guaranteed success
depending of the extent and species of the termites. In case other are thinking
this may work for all situations. JTV
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080<tel:757-220-7080>
Cell 757-634-1175<tel:757-634-1175>
E-Mail jvo...@cwf.org<mailto:jvo...@cwf.org>
[cid:]
On Nov 6, 2017, at 9:06 AM, Hazra Medica
<hazra.med...@ab.gov.ag<mailto:hazra.med...@ab.gov.ag>> wrote:
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Hello,
Kindly permit me to intervene into this space to ask for safe, efficient, and
cost-effective solutions for remedying severe termite infestations of artefacts
and documentary heritage that are slated to become part of a special museum
collection. We have inherited a collection of artefacts and documents, many of
which show clear signs of termite infestation or damage from said infestation
and which are currently still being housed in a building suffering severe
disrepair. In an effort to curtail the spread of the infestation whilst the
pieces are still in their unsuitable environment, I have taken to bagging
(wrapping the wooden sculptures in plastic bags and sealing them with tape. I
have also isolated documents in bags. Removal from the premises is understood
as a necessary step to ensure the rehabilitation of these items. Also,
freezing has been suggested as well as anoxia. Any advice you give will be
greatly appreciated as this is very new territory for us.
Best regards
Hazra C. Medica
Advisor/Consultant on Cultural Matters
Ministry of Trade, Industry, Commerce & Consumer Affairs
Ministry of Sports, Culture & National Festivals
St. John's, Antigua W.I.
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Modified Atmospheres
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ABN: 66 164 577 557
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Alex Roach
Director
Modified Atmospheres
M: 0414 663 472
[http://modifiedatmospheres.com.au/wp-content/uploads/2014/04/MA_original_300px.jpg]
ABN: 66 164 577 557
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