Re: Stock Paint:Gum Solutions?
One of Mike Ware's students figured out what the best PVA is to use
for dichromate colloid process. I have the information in a file
somewhere and will look it up later day if I have time.
On Oct 24, 2008, at 12:53 AM, Kees Brandenburg wrote:
On 24 okt 2008, at 09:31, Loris Medici wrote:
Of course, still, there's the problem of gum not being a defined
(it can change depending on source and year of harvest). Therefore
interested in synthetic alternative such as PVA. I haven't find a
source of suitable PVA, plus, I'm not completely sure which kind
of PVA is
most suitable for our purposes. As soon as I figure these out
type), I'll leave gum aside and use PVA as the colloid. (My current
understanding is that something like 85% hydrolized, with a
around 10 - 12.000 should do well... Any thoughts?)
You can try Mowiol. You find some information at the Kremer
Pigmente site and on the site of the manufactrer Kuraray.
product info pdf: http://kremer-pigmente.de/shopint/PublishedFiles/
product info pdf: http://www.kuraray-kse.com/all/Portfolio_E/$File/