Hello Madeleine,
Original black gummed paper tape are often weak, torn and/or lifted from glass support. As we could not found any black conservation grade paper tape either, we use instead 2 different kinds of tapes : - Filmolux S23 in contact with glass support. It is transparent and composed of polyester + acrylic adhesive ; - Filmoplast P90 (paper base + acrylic adhesive), placed on the S23. Both tapes are used in continuous strip to avoid open corners and insure waterproofness. Both pass the PAT with success. You can color the paper based Filmoplast P90 with a good quality China ink, an acrylic black carbon paint or with black carbon watercolor. Removing acrylic tape can be difficult with time, especially with ancient glass (ex: daguerreotype glass). If you want to avoid this problem and improve reversibility, you can make your own tape in using the Aquazol 200 prepared in 30% in ethanol w/w as adhesive. You can paste the painted paper of your choice with this adhesive and then cut it at the dimensions you need. The tape can be placed on the glass support with heat or with a small amount of liquid ethanol. Please note that Aquazol is very sensitive to humidity, and thus will not be waterproofness. Best regards ! Bruno Le Namouric Photograph Conservator ARCP / Ville de Paris 5 rue de Fourcy 75004 PARIS + 33 1 71 28 13 13 ------------------------------ Bruno Le Namouric Photograph Conservator Atelier de Restauration et de Conservation des Photographies Paris ------------------------------ ------------------------------------------- Original Message: Sent: 10-20-2019 12:45 From: Meagen Smith Subject: Conservation grade tapes for glass slides Holly Smith at The National Archives led a great project that also involved replacing tape. I recall that she used a toned Japanese tissue with Lascoux as the adhesive rather than buying a commercially produced tape. She can be reached via https://hollysmithconservation.com/ <https://hollysmithconservation.com/> ------------------------------ Meagen Smith Studio Manager Parliamentary Archives London +44 207 219 6843 ------------------------------ Original Message: Sent: 10-16-2019 21:36 From: Madeleine Price Subject: Conservation grade tapes for glass slides Hello, I'm undertaking conservation work on a collection of glass cinema slides. These are made with two glass plates adhered around the edges with gummed paper tape in a variety of colours, but mainly black. The paper is failing and I have been asked to replace it as it is going on exhibition. I am struggling to find any black conservation grade gummed paper tape, and none in the size that I need. I have come across two options. One is "Matt Decoration Tape" made by Industrial Tapes UK. It says it conservation grade but I don't even know if this would be appropriate? The second tape that I have found is not conservation grade, but instead used for photography. It is a matt black paper based tape with no residue and used on glass and negatives. Any advice? (I would use Heritage Tapes Black Tyvek tape 13mm but it is no longer in stock anywhere) Best Madeleine Reply to Sender : https://community.culturalheritage.org/eGroups/PostReply/?GroupId=481&SenderKey=115b5c6b-1d68-465a-86e4-2be77fb3729a&MID=9231&MDATE=756%253e465476&UserKey=d16eaa87-0f69-494b-9f2f-303dbc1222e1&sKey=fab9aa4f27a04c5d876e Reply to Discussion : https://community.culturalheritage.org/eGroups/PostReply/?GroupId=481&MID=9231&MDATE=756%253e465476&UserKey=d16eaa87-0f69-494b-9f2f-303dbc1222e1&sKey=fab9aa4f27a04c5d876e You are subscribed to "Global Conservation Forum (ConsDistList)" as [email protected]. To change your subscriptions, go to http://community.culturalheritage.org/preferences?section=Subscriptions&MDATE=756%253e465476&UserKey=d16eaa87-0f69-494b-9f2f-303dbc1222e1&sKey=fab9aa4f27a04c5d876e. To unsubscribe from this community discussion, go to http://community.culturalheritage.org/HigherLogic/eGroups/Unsubscribe.aspx?UserKey=d16eaa87-0f69-494b-9f2f-303dbc1222e1&sKey=fab9aa4f27a04c5d876e&GroupKey=757a8f16-505f-4323-8e74-e376757aa9f7.
