jbs44
Grumbler in Training
I am having trouble with bubbles appearing in some large photos (e.g., 20" x 30" Shutterfly prints) that have been mounted and framed for personal use. I've used adhesive foam core without much problem, but when I used 3M Photo Mount Adhesive Spray onto regular foam core, bubbles developed over a period of a week or so (although initially the bond was tight and no bubbles were evident - the directions for use were followed, of course).
I used a pin with rolling to remove most of the bubbles, but a bit more bubbling continued to occur.
Does this stuff experience some kind of outgassing, or did I fail to observe incipient bubbling that might have expanded with increased temperature or something?
Any thoughts would be appreciated. I guess you pros use some kind of heat-setting pressure mounting, but I don't have that equipment; I assume it's not cheap.
Thanks,
John S
I used a pin with rolling to remove most of the bubbles, but a bit more bubbling continued to occur.
Does this stuff experience some kind of outgassing, or did I fail to observe incipient bubbling that might have expanded with increased temperature or something?
Any thoughts would be appreciated. I guess you pros use some kind of heat-setting pressure mounting, but I don't have that equipment; I assume it's not cheap.
Thanks,

John S