Good morning, Museum'lers - I use heavy duty (freezer) aluminum foil/tinfoil as the first layer wrapped around the cardboard tube at least twice. I get my supply from the local membership warehouse and/or food discount business for a very inexpensive price and a huge quantity. After I rip off the size I need, I hold it up to the light to make sure that there are no pinholes in the piece before I use it. One needs to use a barrier that is a vapor barrier as I understand it since the low-weight molecular acids that are in the cardboard (i.e. formic, acetic) can't transfer thru an impermeable barrier like aluminum foil but can transfer thru permeable barriers such as Mylar and paper-based products. I then cover the foil with a layer of fabric or tissue to soften the crinkles in the foil before I then roll the textile on. I haven't been able to get the foil to go on completely smoothly on any tube longer than about 18". Regards, Margaret Geiss-Mooney Textile/Costume Conservator Professional Associate, AIC [log in to unmask] -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.6.10 - Release Date: 1/10/2005 ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).