Huge back drop printing.....

[peteski]

Peteski, spray mount adhesive likely affected the print. That stuff usually isn't archival. For framed prints. I use a matte that I just tape the corners of print to. I used Twin-Tak for non-framed prints on Fomecor.
 UTC, you'll need lot's of hands to help mount a print that big.
 Joe D

You're probably right. There was no matte - just frame, glass, printed poster, and foamcore board.  I suspect that if the poster was just left floating between the glass and foamcore board it would have been ok.  I just wanted to warn unittraincoal about my experience. It might be best to leave the backdrop of that length floating instead of possibly adhering it to the wall.

[unittraincoal]

Jeez
300 feet of backdrop is impressive

I thought my 86" run was long!

300" inches

[unittraincoal]

You're probably right. There was no matte - just frame, glass, printed poster, and foamcore board.  I suspect that if the poster was just left floating between the glass and foamcore board it would have been ok.  I just wanted to warn unittraincoal about my experience. It might be best to leave the backdrop of that length floating instead of possibly adhering it to the wall.

It's not quite as big as it sounds ... only a 10 foot section is the full 40" the rest will be cut down to about 20"... picture a pan with a long handle....

[peteski]

It's not quite as big as it sounds ... only a 10 foot section is the full 40" the rest will be cut down to about 20"... picture a pan with a long handle....

The height is not what worries me about shrinkage/expansion - it is the length.

[unittraincoal]

Rite now I am leaning toward two UV coated matte 40"x 150" prints. Using Gichlee Varnish, which is also a roll on photo archival adhesive (if not diluted)....Then mounting the photos to large Styrene sheets....

Has anyone here used  Gichlee to mount?

[Chris333]

So is the problem just software? Because you should be able to print till the roll of paper runs out.

[nkalanaga]

Peteski:  I think you're right that, if you had left the paper loose, you would have been fine.  The foamcore and paper almost certainly react differently to humidity changes, and that alone will cause problems.  Just like our layouts, where the metal rails and wooden benchwork expand/contract at different rates with humidity changes.

[unittraincoal]

Peteski:  I think you're right that, if you had left the paper loose, you would have been fine.  The foamcore and paper almost certainly react differently to humidity changes, and that alone will cause problems.  Just like our layouts, where the metal rails and wooden benchwork expand/contract at different rates with humidity changes.

I can't mount it loose or it will attract hot spots from lighting.....
I think I can get away with two 120" prints and hide the seem if I need too... lots of printers print 120"
I've heard people use high adhesive double sided tape, but not sure 🤔 how well that would last....tape just doesn't sound like it will last long....


It's really dry in Colorado year round, virtually no humidity... So I don't know how much of a problem a back drop peeling away would be .... One way to find Out 😏