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Re: [BKARTS] PVA: beware



"clarion call"???

That's funny, I get the sense that Minsky was saying all the old data is obsolete.  Have I misunderstood you Richard.

Bruce


> ----- Original Message -----
> From: "J. J. Foncannon" <bolu.bolu@xxxxxxxxxxx>
> To: BOOK_ARTS-L@xxxxxxxxxxxxxxxx
> Subject: Re: [BKARTS] PVA: beware
> Date:         Mon, 6 Feb 2006 21:48:15 -0500
> 
> 
> If this posting isn't a clarion call to avoid propriety commercial 
> adhesives, I don't know what is.
> 
> Richard Minsky wrote:
> >
> > The report that Bill Minter refers to, which was reprinted in the GBW
> > Newsletter in 1971, was a study of adhesives used in conservation by
> > Prof. Norbert S. Baer of the NYU Institute of Fine Arts.
> >
> > 35 years ago Elvace 1874 and Jade 403 were the "leaders" in his test.
> > Elmer's was the worst. After 16 days in the aging oven, simulating
> > 400 years, paper coated with Jade 403 folded more times than uncoated
> > paper (under 1 KG in a Tinius-Olsen Folding Test) and had no color
> > change. Elmers coated paper turned brown and broke after one fold
> > after one day.
> >
> > I spoke with him about this a couple of years ago, at a Grolier Club
> > reception. His opinion was that all his data about PVA is
> > obsolete.  The companies that manufacture it have been bought and
> > sold, and they have changed their formulas without changing product numbers.
> >
> > --
> > Richard
> > http://minsky.com
> >
> >              ***********************************************
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> 
> --
> 
> __________________________________________________
> **********************************************************
> J. J. Foncannon
> Philadelphia, PA  19139
> 
> 	The Belgian surrealist painter Renee Magritte entered a cheese 
> store in Brussels to purchase a wheel of Swiss cheese.
> The owner pulled a wheel from the front window, but Magritte said 
> he preferred the one on the back counter.
> 	?But they are identical,? the owner protested.
> 	?No,? Magritte insisted.  ?This one?s been stared at.?
> **********************************************************
> 
>               ***********************************************
> Now Online - The Bonefolder, Vol. 2, No. 1 at 
> <http://www.philobiblon.com/bonefolder>
> 
>               For all your subscription questions, go to the
>                        Book_Arts-L FAQ and Archive.
> 
>            See <http://www.philobiblon.com> for full information
>               ***********************************************

>

             ***********************************************
Now Online - The Bonefolder, Vol. 2, No. 1 at <http://www.philobiblon.com/bonefolder>
                                    
             For all your subscription questions, go to the
                      Book_Arts-L FAQ and Archive.
                                    
          See <http://www.philobiblon.com> for full information
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