Digital BW, The Print

Arlene, I have been using 3M Positionable Mounting Adhesive to mount 
Ilfochrome CLM.1K (that's the polyester stuff) to non-buffered board 
for the past eight years.  I haven't had a failure or suffered any 
discoloration yet.  I roll mime on with a Coda roller press.


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "mark_gatehouse" 
<mark_gatehouse@y...> wrote:
> 
> 
> > I've used it for years for presentations, but not for  archival 
> > prints . If 
> > it IS archival - someone -  please let us know, because it's so 
> > easy and always 
> > perfect.  No waste, and no machinery or tools needed except the 
> little 
> > plastic squegee included in the box. If it IS archival, it will 
> > save a lot of money 
> > & time.
> >             Arlene
> > www.arlenelove.com
> 
> Wilhelm lists it as the preferred method for permanent cold 
mounting 
> polyester based prints (as well as RC based prints) in his standard 
> text on colour photographic materials (he also recommends against 
dry 
> mounting for colour and other materials for museum and archive 
> collections)
> 
> Most Conservators would advise against most forms of dry mounting 
for 
> any kind of photogrpahic (or inkjet) prints for the long term. 
Aside 
> from the general lack of data about the long term effects of the 
> adhesives as well as the effectiveness of the adhesives over time, 
> the differentials of joining the two surfaces is problematic.
> 
> I once saw a lovely Ansel Adams print at the National Gallery of 
> Canada which had been kept in non-archival conditions for the first 
> part of it's life. Flexing over the years and differential 
expansion 
> and contraction between the print base and the backing mount has 
led 
> to small ripples in it. Even though it was mounted with "standard" 
> mounting tissue it proved virtually impossible to repair.
> 
> Basically, for long term "archival" storage, just don't dry mount. 
If 
> you dry mount then it isn't "archival" (whatever the manufacturers 
> claims might be). Most texts from conservation institutes will 
advise 
> against it. If you are dry mounting for display then it isn't meant 
> for long term "archival" storage.