U of S | Mailing List Archive | alt-photo-process-l | RE: buffered matte board??

RE: buffered matte board??

  • To: alt-photo-process-l@usask.ca
  • Subject: RE: buffered matte board??
  • From: Gawain Weaver <gawain.weaver@gmail.com>
  • Date: Mon, 23 Apr 2007 23:00:24 -0400
  • Comments: "alt-photo-process mailing list"
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Cut and pasted from Light Impressions http://tinyurl.com/26odo7 , who has probably been the most effective advocate for making a distinction between buffered and un-buffered mat board. Their description says it all, though be mindful that with regards to storing photographs, it’s all hearsay. I’m not saying it’s wrong, just unproven:



Westminster™ Non-Buffered Full Sheets - 25/pkg
When you're matting certain types of photographs, such as albumen, dye transfers, or chromogenic prints, and textiles, like silk and wool, use non-buffered board. Putting a buffered mat next to the acidic dyes in these materials could cause a color shift. It's manufactured with a pH value of 7.5 +/- .5, and because it is not buffered, the pH value will drop when exposed to normal atmospheric conditions. 32" x 40" in 4-ply (55pt., 1/16" thick) only.


From: Bruce Campbell [mailto:brucerccampbell@sbcglobal.net]
Sent: Monday, April 23, 2007 9:40 PM
To: alt-photo-process-l@usask.ca
Subject: RE: buffered matte board??




I have heard this before BUT where does someone get unbuffered mat board for use with cyanotypes?  Maybe I just have not found the correct source.


Also- does anyone make unbufferd storage boxes?



"Robert W. Schramm" <schrammrus@hotmail.com> wrote:

Don't use anything buffered around cyanotype.

Bob Schramm

Check out my web page at:


>From: Hans Klemmer
>Reply-To: alt-photo-process-l@usask.ca
>To: alt-photo-process-l@usask.ca
>Subject: buffered matte board??
>Date: Mon, 23 Apr 2007 14:53:41 -0500
>Does anyone have a comprehensive list regarding
>which processes need buffered mattes and which need unbuffered mattes?
>Hans Klemmer

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