Digital BW, The Print

Everything outgases.
If you're going to seal the picture into a frame, behind glass or  
plexiglass, I would think that it would be best not to include  
anything in that environment that could possibly affect the print.  
Considering the cost of the print and the cost of matting and framing  
it, the price of an archival backer board is a trivial expense.

Dave
http://davereichertphoto.com/


On Nov 4, 2009, at 2:42 PM, Richard Smallfield wrote:

> Hi,
> I've just bought some Tyvek to place between prints and non-archival  
> backing board.
>
> Tyvek is breathable but waterproof - but if frames are not going to  
> get damp from very high humidity, what chance is there of acids  
> migrating, if something cheaper like alpha cellulose card is placed  
> between the backing board and print?
>
> thanks,
> Richard



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