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#21
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In article , wrote:
Do not dry mount anything you care about. Even if the process is `perfect' it makes it impossible to to remove the work from the backing if re-mounting is needed in the future. That's simply not true. Modern archival mounting tissue can be removed by simple reapplication of heat. Hinges and paste, or linen tape, often must be trimmed from the print with a knife -- I have often been quite amused to hear this slicing away of part of the print as evidence of a "reversible" mounting process. Sure, you can _supposedly_ soak or steam rice paste away (_supposedly_ without damaging the gelatin emulsion that's sitting right next to it -- ha!) which I consider about as likely as reversing a dry-mounting job done with traditional (not modern "archival") tissue: possible, but very difficult and failure-prone at best. The only truly reversible "mounting" process is use of corners, whether paper or intert plastic, with inert adhesive. The problem, of course, is that these don't reliably hold large, heavy, highly flexible prints in place, much less flat, over long periods of time; in other words, they are reversible, but they aren't much by way of _mounting_. Meanwhile, there is considerable evidence that modern dry mounting techniques, coupled with modern archival boards, actually _protect_ prints from contamination all too common in display environments by removing the opportunity for contaiminants to reach 50% of the total surface area of the print itself (the back). I have come around to the point of view that prints that will be displayed, then, should be dry-mounted; while prints for archival storage should not be mounted _at all_. You just can't have it both ways. -- Thor Lancelot Simon But as he knew no bad language, he had called him all the names of common objects that he could think of, and had screamed: "You lamp! You towel! You plate!" and so on. --Sigmund Freud |
#22
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"Thor Lancelot Simon" wrote in message
... In article , wrote: Do not dry mount anything you care about. Even if the process is `perfect' it makes it impossible to to remove the work from the backing if re-mounting is needed in the future. That's simply not true. Modern archival mounting tissue can be removed by simple reapplication of heat. Hinges and paste, or linen tape, often must be trimmed from the print with a knife -- I have often been quite amused to hear this slicing away of part of the print as evidence of a "reversible" mounting process. Sure, you can _supposedly_ soak or steam rice paste away (_supposedly_ without damaging the gelatin emulsion that's sitting right next to it -- ha!) which I consider about as likely as reversing a dry-mounting job done with traditional (not modern "archival") tissue: possible, but very difficult and failure-prone at best. The only truly reversible "mounting" process is use of corners, whether paper or intert plastic, with inert adhesive. The problem, of course, is that these don't reliably hold large, heavy, highly flexible prints in place, much less flat, over long periods of time; in other words, they are reversible, but they aren't much by way of _mounting_. Meanwhile, there is considerable evidence that modern dry mounting techniques, coupled with modern archival boards, actually _protect_ prints from contamination all too common in display environments by removing the opportunity for contaiminants to reach 50% of the total surface area of the print itself (the back). I have come around to the point of view that prints that will be displayed, then, should be dry-mounted; while prints for archival storage should not be mounted _at all_. You just can't have it both ways. -- Thor Lancelot Simon But as he knew no bad language, he had called him all the names of common objects that he could think of, and had screamed: "You lamp! You towel! You plate!" and so on. --Sigmund Freud Take a look at this. http://www.pictureframingmagazine.co...ramingTalk.asp -- Otzi |
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