Email digest for the Global Conservation Forum (ConsDistList) egroup. ------------------------------------------------------------------------------------------------------------
1. Workshop announcement Analyzing Temperature (T) and Relative Humidity (RH) fluctuations in past (or current) records from Museums " 2. RE: 3D Manipulation Software 3. Comprehensive, one-year Paper Conservation Course 2026/27 4. RE: UV blocking Acrylic sheet for windows 5. 2025 Preventive Conservation Workshop 6. RE: UV blocking Acrylic sheet for windows ------------------------------------------------------------------------------------------------------------ 1.From: Paola Lucero Posted: Friday September 5, 2025 5:57 AM Subject: Workshop announcement Analyzing Temperature (T) and Relative Humidity (RH) fluctuations in past (or current) records from Museums " Message: Dear all, It is my pleasure to invite you to attend the workshop entitled Analyzing Temperature (T) and Relative Humidity (RH) fluctuations in past (or current) records from Museums within the frame of the Conference on Cultural Heritage and New Technologies (CHNT) https://chnt.at/programme-2025/ <https://chnt.at/programme-2025/>.The conference will be held in Vienna from 3rd to 5th November, and the workshop will take place on November 4th from 13.40 to 16.40 (Paris, Vienna time).The objective of the workshop is to teach users how to analyse past (and also current) records of T and RH. These data that is often present in museums and can be a precious tool to understand what has been the environment to which collections had acclimatised. The workshop includes a perspective on the consequences of climate change, so conservators can be aware of the risks that the collections under their care might be exposed to, in the medium term. Looking froward to meet you there, kind regards -- Dra. Paola LUCERO 2.From: Cathryn Harvey Posted: Friday September 5, 2025 5:57 AM Subject: RE: 3D Manipulation Software Message: Hi, I can also recommend Dragonfly ORS as well, although it is more for the processing than reconstruction. However, you can segment out missing areas which can then be adjusted in other software. It's free for academic use, and you can get a free 30-day license (https://dragonfly.comet.tech/). They also very helpfully have free tutorials on YouTube that walk you through how to use it. I used it for my PhD, working with microCT data, so definitely recommend it. I'm always happy to chat more about it. Having gone through something similar, I know how tricky learning how to do 3D scanning and manipulation can be. Good luck! ------------------------------ Cathryn Harvey Preventive Conservator Parliamentary Archives London United Kingdom ------------------------------ ------------------------------------------- Original Message: Sent: 08-28-2025 11:39 From: Olivia-Jane Haslam Subject: 3D Manipulation Software Hello all, I am an archaeogical conservator working on a 3D reconstruction project using one of our objects. Our goal is to digitally reconstruct missing sections of the object using a combination of scan data and digital modeling to better understand its purpose. I do not have much experience yet with 3D modeling and was looking for recommendations on software to use for manipulating 3D scan data to create reconstructions and other maniupulated models such as molds and fills. Currently we have an Artec Leo scanner and we use Blender 4.4 and Bamboo Studio after the data is processed with Artec Studio. In my research I have seen a couple different softwares depending on the scanner along with Sketchfab and CAD modeling. Any information regarding software, its price, and how easy it is to use would be greatly appreciated. Thank you! ------------------------------ Olivia-Jane Haslam Archaeological Conservator The Mariners' Museum and Park Newport News, Virginia United States ------------------------------ 3.From: Christian Dreyer Posted: Friday September 5, 2025 8:36 AM Subject: Comprehensive, one-year Paper Conservation Course 2026/27 Message: The South African Institute for Heritage Science and Conservation invites enrolment applications for a comprehensive, one-year, Paper Conservation course, scheduled to start on May 6th, 2026. This course will appeal to candidates from archives, galleries and museums as well as persons seeking a career inflection to private conservation practice. A four-month online chemistry course (Bridging for Chemistry for Conservation) is incorporated into the twelve-month structure and is designed as a preliminary screening for admission to the core modules that follow. Candidates possessing an attested or verifiable foundational knowledge of chemistry may seek exemption from this requirement. Within the course proper (Sept - April), each component subject shall be a prerequisite of those following. The sequence for admission, progress and attainment will therefore hold firm. Please find below the order of the learning components, including the respective schedules, formats and tuition fees applicable to each: Live, online welcoming, introductions and orientation, including individual sessions between faculty and students: 6 - 7 May 2026 [USD 75.00] The course Bridging to Chemistry for Conservation: May to August 2026 (a guided, online, self-study admissions prerequisite) [USD 795.00] The distance-learning module Conservation Theory & Skills: 1 September to 23 October 2026 (twice-weekly live lectures, practical assignments etc) [USD 1,028.00] The distance-learning component of the module Paper Conservation (Foundational level): 27 October to 4 December 2026 (twice-weekly live lectures, practical assignments etc) [USD 842.00] The distance-learning component of the module Paper Conservation (Advanced level): 19 January to 26 February 2027 (twice-weekly live lectures, practical assignments etc) [USD 1,232.00] The distance-learning module Commercial Conservation Practices & Vocational Identity: 2 - 30 March 2027 (a sequence of live lectures & discussions) [USD 796.00] On-campus, contact learning practicals during the period 5 - 23 April 2027 (refining hands-on, technical bench skills) [USD 1,390.00, inclusive of student housing & suppers] Registration for the live, online orientation session and the Bridging to Chemistry for Conservation component shall jointly close on April 15th, 2026. Thereafter, the fees applicable to each of the learning components/modules shall intermittently become due, being receivable 14 days prior to each component's published commencement date outlined within the above calendar. Enquiries and expressions of interest may be directed to [email protected] <[email protected]> Dr Christian Dreyer (Programme Director) The South African Institute for Heritage Science and Conservation Faculty of Physical Sciences Faculty of Commerce www.sainst.org <http://www.sainst.org/> Registered as: The South African Institute for Heritage Science (Pty) Ltd. Registration Number: 2015/317414/07 An institution of Postgraduate Higher Learning (Higher Education Act No. 101 of 1997) 4.From: Dale Kronkright Posted: Friday September 5, 2025 12:19 PM Subject: RE: UV blocking Acrylic sheet for windows Message: Michaela - I am very interested in your comment above that the UV absorbing glass films have a lifespan of 5 - 10 years. 3M films are warranted to perform to specification for 15 years, which suggests that the manufacturers expect a longer life. Is the "life span" you are referring to a visible quality, a UV absorbing quality or an adhesion quality? Thanks so much for expanding on this part of your post. ------------------------------ Dale Kronkright Head of Conservation Georgia O'Keeffe Museum and Research Center Santa Fe United States ------------------------------ ------------------------------------------- Original Message: Sent: 09-02-2025 12:02 From: Michaela Neiro Subject: UV blocking Acrylic sheet for windows We have used UV film in certain locations at some sites. My concerns with film is that it has a much shorter lifespan (5-10 years) than plexi (25+ years), damage can be done to glass upon its removal, and it blocks significantly less UV than plexi. The film certainly looks better when well applied and is much easier for staff to maintain and operate windows. This is the quandary. We will likely continue to use a combination of film and plexi depending on location, size of window etc. I would love to hear more about successes or failures with film and plexi. Thank you Michaela Neiro She/Her Director of Conservation Historic New England 151 Essex St Haverhill, MA 01832 (617) 994-6635 Become a member <https://www.historicnewengland.org/get-involved/memberships/> | Support our work <https://www.historicnewengland.org/get-involved/donate/> | Learn more <https://www.historicnewengland.org/> JOIN US at the Historic New England Summit <https://summit.historicnewengland.org/> November 13 & 14 in New Haven, CT, and Livestream <https://summit.historicnewengland.org/> Original Message: Sent: 9/2/2025 9:38:00 AM From: Ian Loughead Subject: RE: UV blocking Acrylic sheet for windows I was wondering if you had considered UV blocking film? We have had good success using that at our historic homes. Advantages, less obvious to visitors and allows for the operation of the windows if needed. We found that some staff would remove the plexi sheet barriers in homes that needed cross ventilation and therefore we lost all UV protection, while an open window was at least 50% covered. When temperatures get hot inside homes with no moving air, staff will find a way to make it cooler. The films usually are available in clear with only UV blocking, or levels of light blocking as well. The downsides to the film is the time it takes to install the film, which is much more labour intensive and possibly (we have not found this to be true) the chance of damage to very old glass as it is stuck on with an adhesive. Technically these also come in safety films, which make the windows more shatter resistant as far as theft and vandalism goes. ------------------------------ Ian Loughead Senior Conservator Nova Scotia Museum of Natural History Halifax Canada ------------------------------ Original Message: Sent: 08-27-2025 15:18 From: Michaela Neiro Subject: UV blocking Acrylic sheet for windows I am looking for available brands of Acrylic/plexi sheet to hang in the windows of our Historic House museums to block UV while the sites are open in the summer. I currently have quotes for Optix UVF and Acrylite OP-3. Is anyone familiar with these products or do you have others to recommend? Thanks for your input, Michaela Neiro Director of Conservation Historic New England 5.From: Sigourney Stanford Posted: Friday September 5, 2025 2:50 PM Subject: 2025 Preventive Conservation Workshop Message: The Georgia Archives Conservation Department is excited to present a three-day workshop in 2025 on Preventive Conservation: Care of Archives, Art, and Artifacts. This workshop is for anyone working in cultural heritage institutions, libraries, museums, and galleries, or anyone who has an interest in learning how to best look after their items. They are suitable for beginner to intermediate attendees, and prior conservation experience is not required. The workshops will cover the causes of material degradation, environmental monitoring and control, integrated pest management, housekeeping, preservation policies, storage of furniture and enclosures, risk assessment, emergency planning and procedures, and disaster recovery. Participants are also welcome to share their experience with preservation and discuss ways to problem solve for specific concerns. Presented in a hybrid format, both online and in person, join us to gain a greater understanding of how to best look after your treasures! The workshops are generously sponsored by the NHPRC with subsidies on the cost of registration. REGISTRATION FEE: $50.00 (Registration fees include handout materials, and snacks will be provided.) WHEN: October 27-29, 2025 (capacity of 30) Final day to register or cancel is October 24, 2025. WHERE: Georgia Archives, 5800 Jonesboro Road, Morrow, GA 30260 OR online through Microsoft Teams INSTRUCTOR: Sigourney Stanford, Conservator, Georgia Archives Register here: https://universitysystemofgeorgia.swoogo.com/2025PreventiveConservationWorkshop <https://universitysystemofgeorgia.swoogo.com/2025PreventiveConservationWorkshop> Sigourney Stanford Conservator Georgia Archives 5800 Jonesboro Road Morrow, GA 30260 678-364-3842 <tel:6783643842> www.GeorgiaArchives.org <http://www.georgiaarchives.org/> 6.From: Michaela Neiro Posted: Friday September 5, 2025 8:04 PM Subject: RE: UV blocking Acrylic sheet for windows Message: Dale, I have limited first-hand experience with the deterioration of UV film. At Historic New England, we began using it 15 years ago and some of those earliest applications are now failing - bubbling, delaminating and darkening. In the 2011 WAAC Newsletter Vol 33, #1 Ageing Properties of UV Film, they characterized UV absorption, visible transmission and colorimetric properties of several films and how the properties of the films changed over time. The concluding statement recommends that changes in the adhesive (crosslinking) might make the film intractable such that no film should be left on museum windows for longer than 7 years regardless of changes in optical properties. We have yet to remove any old film so it is unclear what, if any, damage will be done. I have also read not to use UV film on old (historic) glass, but have heard only a few accounts of problems. I don't want to be alarmist regarding UV film and would love to hear more about its use and removability including specific products. ------------------------------ Michaela Neiro Objects Conservator Historic New England Boston United States ------------------------------ ------------------------------------------- Original Message: Sent: 09-05-2025 10:46 From: Dale Kronkright Subject: UV blocking Acrylic sheet for windows Michaela - I am very interested in your comment above that the UV absorbing glass films have a lifespan of 5 - 10 years. 3M films are warranted to perform to specification for 15 years, which suggests that the manufacturers expect a longer life. Is the "life span" you are referring to a visible quality, a UV absorbing quality or an adhesion quality? Thanks so much for expanding on this part of your post. ------------------------------ Dale Kronkright Head of Conservation Georgia O'Keeffe Museum and Research Center Santa Fe United States ------------------------------ Original Message: Sent: 09-02-2025 12:02 From: Michaela Neiro Subject: UV blocking Acrylic sheet for windows We have used UV film in certain locations at some sites. My concerns with film is that it has a much shorter lifespan (5-10 years) than plexi (25+ years), damage can be done to glass upon its removal, and it blocks significantly less UV than plexi. The film certainly looks better when well applied and is much easier for staff to maintain and operate windows. This is the quandary. We will likely continue to use a combination of film and plexi depending on location, size of window etc. I would love to hear more about successes or failures with film and plexi. Thank you Michaela Neiro She/Her Director of Conservation Historic New England 151 Essex St Haverhill, MA 01832 (617) 994-6635 Become a member <https://www.historicnewengland.org/get-involved/memberships/> | Support our work <https://www.historicnewengland.org/get-involved/donate/> | Learn more <https://www.historicnewengland.org/> JOIN US at the Historic New England Summit <https://summit.historicnewengland.org/> November 13 & 14 in New Haven, CT, and Livestream <https://summit.historicnewengland.org/> Original Message: Sent: 9/2/2025 9:38:00 AM From: Ian Loughead Subject: RE: UV blocking Acrylic sheet for windows I was wondering if you had considered UV blocking film? We have had good success using that at our historic homes. Advantages, less obvious to visitors and allows for the operation of the windows if needed. We found that some staff would remove the plexi sheet barriers in homes that needed cross ventilation and therefore we lost all UV protection, while an open window was at least 50% covered. When temperatures get hot inside homes with no moving air, staff will find a way to make it cooler. The films usually are available in clear with only UV blocking, or levels of light blocking as well. The downsides to the film is the time it takes to install the film, which is much more labour intensive and possibly (we have not found this to be true) the chance of damage to very old glass as it is stuck on with an adhesive. Technically these also come in safety films, which make the windows more shatter resistant as far as theft and vandalism goes. ------------------------------ Ian Loughead Senior Conservator Nova Scotia Museum of Natural History Halifax Canada Original Message: Sent: 08-27-2025 15:18 From: Michaela Neiro Subject: UV blocking Acrylic sheet for windows I am looking for available brands of Acrylic/plexi sheet to hang in the windows of our Historic House museums to block UV while the sites are open in the summer. I currently have quotes for Optix UVF and Acrylite OP-3. Is anyone familiar with these products or do you have others to recommend? Thanks for your input, Michaela Neiro Director of Conservation Historic New England You are subscribed to "Global Conservation Forum (ConsDistList)" as [email protected]. To change your subscriptions, go to http://community.culturalheritage.org/preferences?section=Subscriptions. 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