Digital BW, The Print

Hi Paul,

I have no clue if what follows will help you …likely not …so possibly just informational.  but I’ve been mounting canvas to various substrates for a long time and  have had a few hard learned lessons.

Anyway as far as bonding adhesives go you don’t want to use a water based adhesive if you can help it  as they typically don’t have enough elasticizers  in them so they won’t move well with the breathing of the canvas .. a paper print mount should be ok… The only water based product I’ve ever used that seemed to come close is 3M’s fast tack 1000NF but I don’t use it with canvas or fabric type stock.  I guess I wouldn’t be afraid to do it but I use a solvent based stock  simply because I know  what it does..  ..  Both a silicon based and solvent based do have  better elastisizer  content  so a better way to go. 

 

A thought regarding  using foam core as a substrate.  Over time I have had a few bad experiences with that and canvas..  Especially on larger pieces.. they warp over time.  We figure that this is due to difference in shrinkage / expansion of the canvas & the substrate and the canvas always wins. Smaller pieces would likely work well but larger pieces I won’t mount on foam core ever…. anymore..

 

Ok the top coats.. Many canvas materials that are made only  for  water based inks will soften and become a bit stretchy if you lay enough solvent top coat on them …They have always ended up just fine after a couple of days but  some canvas you wouldn’t believe how stretchy it can get.. I actually made a few oval gallery wraps doing this some years back.. Not perfect but you’d be surprised at how nice they were ( Bulldog solvent & Fredrick’s WR canvas) .

  

 

Ok lastly I totally get your reason for not wanting to use gator board.. It is not archival .. but with the help of a couple of curators out this way ( YNP / Smithsonian & Museum of the Rockies)  we have a few solutions for that.. Option one is to coat the mount side with gesso which is a proper barrier.. the other is to use Beinfang  Rag Mount in a mounting press which also provides the proper barrier. That also works with Masonite.. but I don’t like Masonite as it’s too heavy. Anyway for larger pieces I want them to stay flat and this works .. I have pieces that have been out for over 15 years and their doing  just fine.  Also  I like that you can finish the edges on gator board if you want to.. I have actually grown kinda fond of gator board..  For high end art you can bond a piece of acid free to the gator board then bond the art to that mix.. for the record that is bomb proof and the maximum barrier…..it’s actually perfect as long as the client steps up for the added cost..  Sorry for rambling on..

 

In the end we all have different visions  of what we want to provide our clients as product. Constructively …that is something we need to grow into.. So nothing is right or wrong ….It’s simply about what your market is and what you can pull off and make it work for them. That’s the fun part.  It’s all about relationship.

 

jimbo

 

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] 
Sent: Saturday, September 03, 2016 3:17 PM
To: DigitalB&WPrint
Subject: [Digital BW] Canvas & solvent-based adhesives

 

  

First, the question:  

 

Does anyone have any experience with using a solvent based acrylic adhesive to glue down canvas?​

 

The background: 

 

I think ​I have found a canvas that does most of what I want -- Innova Photo Canvas Ultra Gloss.  (Thank you Mark McCarvill.)  It still has some annoying highlights from spot lighting.  However, I just tested some in the gallery, and it seems to work well there as well as in home and office environments.

 

It has a very high dmax as long as the glint of the canvas surface does not unduly pick up spotlights.

 

Of particular note, profiles for Innova F-Type glossy (letter size) paper seem to be directly transferable to the canvas without even re-linearizing.  That saves a lot of work and canvas.

 

I spray the Innova canvas with solvent based Premier Art Print Shield.  That makes it waterproof.  This is easy in a well ventilated location.  (Wear goggles, & don't breath it.)

 

The matte canvas I was producing (only as "artist proofs" -- and they did sell well), is just too fragile to use without a thick water-based coating.  I do not believe most individual photographers/printers are going to be happy dealing with water based coatings.  I'm not.  I could farm it all out, but that's not my style.

 

I also am not going to deal with water-based adhesives or gator board.  Water causes canvas to shrink, and gator board is not acid free.

 

Currently, my plans are to glue the canvas down to acid free foam core.  3M spray 77 works well, but the overspray might be a problem.

 

Thus the question about experience with using a solvent based acrylic adhesive to glue down canvas.  These adhesives seem to be the state of the art for may uses, but I'm not finding them discussed for what I'm proposing. 

 

Paul

www.PaulRoark.com 

 



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