Posted a question about this a number of months ago. I was looking to see what people were using to varnish their Giclee canvas prints, adhesive to mount it with and the substrate that they would recommend. It became clear that Gatorboard was the substrate of choice, Timeless or Glamour 2 for a sealer and Miracle Muck for an adhesive. I really cannot get any of the above locally. So before I order online I just want to know if there are any good alternatives that I could find locally, like HomeDepot or Lowes. Hardboard or masonite, any acid-free glue like Elmers or any Minwax sealer.
After I posted this, I did see that breathing color had a video on that. I think that would make life that much easier to use the same stuff for both sealing the canvas and gluing it down to the substrate.
I think I may just go with an MDF substrate with a museum 4 ply matt in between, use the Timeless for both purposes and place in a frame to hide the edges.
In watching the BC foam roller video, he rolls (madly) over the print on some substrate (is that just some paper or other disposable media?) Doesn't the print essentially adhere to that substrate along the edges? Do you XActo around the edges to release it?
If I am not mistaken, they want you to remove the print from that substrate within 20 minutes so it does not stick to it. I do some custom woodworking with veneers and I sometimes use wax paper under them so I can release them easy enough when the time comes.
When rolling BC's Glamour II with a dense foam roller on canvas, the Glamour II is diluted with water. You can easily remove the media/substrate after rolling or spraying. Overspray/rolled Glamour II can be peeled off the table or use a cleaner like 409 to remove. If left undiluted, Glamour II is thick and can be used as an mounting adhesive (better/less expensive alternatives do exist!) and can even be used with small artist brushes as an embellishing agent. Timeless was designed not to be diluted and can't be coaxed into double duties like Glamour II!
HVLP spraying is much much much easier when coating canvas (I use Glamour II). However, for fine art papers, I've found that rolling with Timeless works best.