Digital BW, The Print

The adhesive on the best products is very aggressive and not the weak link, but there are removable or repositionable versions for short term use. Once the good stuff is on the acrylic two strong man can pull it apart if they work fast, but it quickly cures and then it’s impossible to get it off. 

From: mailto:DigitalBlackandWhiteThePrint@yahoogroups.com 
Sent: Monday, July 30, 2018 10:43 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com 
Subject: Re: [Digital BW] Re: the Red River online newsletter: glass or no glass?




Thanks for the info. Is the acrylic adhesive the potentially weak link of the system? Based upon the cost of thick acrylic mounting I would hope that the adhesive is stable but are there varying qualities that I should be aware of?

Thanks

Phil Lindsay




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From: "'John Castronovo' jc@... [DigitalBlackandWhiteThePrint]" <DigitalBlackandWhiteThePrint@yahoogroups.com>
To: DigitalBlackandWhiteThePrint@yahoogroups.com 
Sent: Monday, July 30, 2018 7:16 AM
Subject: Re: [Digital BW] Re: the Red River online newsletter: glass or no glass?


  
The plastic can vary, but the acrylic doesn’t touch the photo because there’s a Mylar sheet coated with acrylic adhesive between them. 

From: mailto:DigitalBlackandWhiteThePrint@yahoogroups.com 
Sent: Sunday, July 29, 2018 11:48 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com 
Subject: Re: [Digital BW] Re: the Red River online newsletter: glass or no glass?




Thanks for the interesting article. II wonder the stability of the thick (1/4 inch or so) of acrylic plastic used for lamination of color photographs. I don't know if the material applied cold or hot. I am being to appreciate the potential dangers in lamination.


Thanks again


Phil Lindsay


 

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From: "'John Castronovo' jc@... [DigitalBlackandWhiteThePrint]" <DigitalBlackandWhiteThePrint@yahoogroups.com>
To: DigitalBlackandWhiteThePrint@yahoogroups.com 
Sent: Sunday, July 29, 2018 3:40 PM
Subject: Re: [Digital BW] Re: the Red River online newsletter: glass or no glass?


  

There are so many plastics and different grades within each type, but in general you need to stay away from PVC or vinyl. 
http://www.gaylord.com/resources/understanding-plastics-for-preservation



From: mailto:DigitalBlackandWhiteThePrint@yahoogroups.com 
Sent: Sunday, July 29, 2018 12:50 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com 
Subject: Re: [Digital BW] Re: the Red River online newsletter: glass or no glass?




I used "GBC HeatSeal" laminating pouches, 3 mil "ultra clear" (11.5" x 17.5"), and a GBC heat press (roller)..... I could not find any information on the company website about the actual material used.  The art market is pretty clearly not the intended user, so the material may be problematic in the long run.


As you said, "... unlike glazing, lamination actually becomes an integral part of the print so if 
anything happens to the laminate, the print is also ruined."  Hence my concern. 
  "Some plastics will outgas, yellow and deteriorate becoming brittle over 
  time, and some are much more stable to the point of being considered 
  archival. The acidity of the adhesive also needs to be considered, and you 
  need to stay away from cheap rubber based adhesives and use only laminates 
  that use acrylic based adhesive."
Do you know of a specific product or brand that would fit the description and hence be at least approximately archival?

Thanks!!