[alt-photo] Re: PVA for SIZE & GUM ?‏

[Diana Bloomfield]

Hi Peter,

Thank you.  I really appreciate that.

And, yes, I'm hoping that Jamee is being truthful.  I did notice that  
on the Gamblin site, under their PVA blurb (below), they thank the  
"Canadian Conservation Institute," which, apparently, has helped  
"painters and conservators identify the best PVA to use."  I suspect  
you might be able to go into the CCI site and retrieve some detailed  
information about their PVA.  I didn't bother to do that myself,  
because since Gamblin mentions them specifically, I'm guessing  
whatever they have to say about it is good.  ?

Diana


POLY VINYL ACETATE (PVA) SIZE
Diluted with distilled water, PVA size is a contemporary size for  
fabric support. Conservation scientists recommend painters use neutral  
pH PVA size on linen and canvas instead of rabbit skin glue. PVA  
provides a good size layer that seals the fabric but does not re- 
absorb atmospheric moisture, swell and shrink like rabbit skin glue  
does. There are hundreds of different formulae of PVA. We acknowledge  
and appreciate the research of the Canadian Conservation Institute  
that helps painters and conservators identify the best PVA to use.  
Gamblin PVA Size is made from PVA that has a neutral pH and does not  
yellow. It also retains its flexibility and does not emit harmful  
volatiles.

>
> Hello Diana:
>
>
>
> Thank you for bringing to my attention the communication you had  
> with Gamblin. Jamee's comments are helpful and, hopefully, truthful.  
> From the work I've seen on the web, I admire your vision and respect  
> your insight.
>
> Peter J. Blackburn
>