Digital BW, The Print

Paul,

I think 3mm 77 is great.. I can’t fault it.. If you want to use a brush try the other 3m product I mentioned.. It’s thicker of course and lends itself better to the back side of canvas as far as filling in the tooth.

 

Overspray: I have a couple or roll paper dispensers mounted on the wall plus one sort of large work table on wheels. I use the roll paper then place the job on that and the overspray gets caught on the roll paper. Maybe not the greatest but I can do it all in the studio that way.. I kinda like that especially in the winter months.. 

 

The Vacuseal machine I have is the 4468H .. The biggest issue is really a place to put it.. but they make a small one also a 3444H The theory is one can deal with a 40 x 60 substrate and the other 32 x 40.. That being said….. used these things are frankly a good deal.. You can run them with or without heat. Most folks don’t realize it but these are perfect for semi production.. I have both 32x40  & 40 x 60 templates I’ve made from sheets of mat and you can gang mount various size prints on a sheet of 32 x 40 or 40 x 60 ..Then just cut them out..  

 

Epoxy.. I guess you get to sort that out but this type product out gasses forever even when it reaches what they call a half life it still does it.. I couldn’t go there mostly because the out gassing has to affect the printed product at some point .. we used to cast epoxy to make prototype lenses ( in my other life ..headlights , taillights etc ) they would start out clear (we did them in a vacuum bell) but after a few years they weren’t as cast.. cracks, discoloration etc.

 

In truth you have to try some of this stuff out.. just cause.. I get that .. I still try stuff out.. but for me if my or a customer’s expectation is kinda at risk I get pretty spooked at marketing it.. I try to err on the side of cautious or careful..  I honestly get a kick out of you huge.. you go where no man has gone before  all the time.. then you share and help us…that’s way kool. 

 

jimbo

 

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] 
Sent: Monday, September 05, 2016 1:30 PM
To: DigitalB&WPrint
Subject: Re: [Digital BW] Canvas & solvent-based adhesives

 

  

 

> ... 3m 77 which actually works quite well ...

 

I like the 30 sec. to 15 minute bonding window it claims to have.  For my overspray issue, I can spray outside my studio and have time to haul the pieces inside for putting them together.  It's the need to get that assembly right the first time that bothers me the most about the contact adhesives.

 

For silver prints I always used a heat mount print.  But for the individual photographer/printer, I doubt the capital costs of the hardware to handle 40x60's could be spread adequately.  In some museum shows we've had Samy's do that end of the business, but there are real advantages to having as much of the process be doable in-house as possible.   

 

> ...  epoxy’s ... won’t stand the test of time ..

as they will crack and or discolor plus x-gas forever. 

 

​All epoxy yellows with UV exposure, as far as I can tell.  I'm not sure the extent of that risk for inside display, where the epoxy is under the canvas, and that has also been sprayed with (somewhat) UV blocking Print Shield spray.  Would the color ever affect the image?

 

For coatings, the non-yellowing aliphatic polyurethanes are much better for our purposes.  They also have more elasticity.

 

The modern 100% solids versions of these with, supposedly, no VOC's might be something I'll have try.  I'm not sure what odor issues those have.

 

(Speaking of which, the odors of some inkjet canvas products that are not well aged are rather off-putting.  I never thought bad smells would be a factor in my "paper" selection.)

 

Paul

www.PaulRoark.com 

 

 



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