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- To: Multiple recipients of list BOOK_ARTS-L <BOOK_ARTS-L@xxxxxxxxxxxxxxxx>
- Subject: pva glue
- From: gary walker <gwalker@xxxxxxxxxxxxxxxxx>
- Date: Wed, 5 Jun 1996 13:42:25 -0700
- Message-id: <199606052138.RAA28326@listserv.syr.edu>
- Sender: "The Book Arts: binding, typography, collecting" <BOOK_ARTS-L@xxxxxxxxxxxxxxxx>
i have some 17 century sermons that have a paper wrap that was glued with
lineco white neutral ph white glue the factory claims it is fully
reversible-i am sure it is pva --i want to detatch the covers and do it with
wheat paste as the value is reduced if not pasted into wraps. is this
possible to reverse some pva-about 6 months old-?
i - is there a special reason why hot hide glue is no longer used? I believe
>>the purists are still using it? Or am I 20 yhears behind the 8 ball.
>>Lilias at Saltwinds
>Yes, there is still a place for hot hide glue. However, there are problems
>with hide glue, used alone. It is too stiff on drying. For that reason,
>it is a good idea to add some starch paste (wheat starch is what I use) to
>hot hide glue to increase flexibility in the adhesive film.
>For the same reason, one may add methyl cellulose to a cooked (wheat)
>starch paste. It increases flexibility. Methyl cellulose cannot be added
>to hot hide glue (it will precipitate out).
>Adhesives should be chosen to accomodate the task and materials at hand.
>There are no single, simple answers.
>Hope this helps.
> Jack C. Thompson
> Thompson Conservation Laboratory
> The Caber Press * Istor Productions
> 7549 N. Fenwick
> Portland, OR 97217
> 503/735-3942 (voice/fax)
> jct@xxxxxxxx * tcl@xxxxxxxxxxxx
> "Is a half-wit herbalist only parseley sage?"
> Don Guyot, 1996
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