Luminous Landscape Forum

Raw & Post Processing, Printing => Printing: Printers, Papers and Inks => Topic started by: Ryan Mack on July 17, 2023, 08:39:43 am

Title: Humidity and poster hangers
Post by: Ryan Mack on July 17, 2023, 08:39:43 am
I hung up 4 40" prints using a poster hanging system and with the seasons changing and higher humidity there is a lot of rippling. I am wondering if it's worth reprinting them or if going back through another dry winter and humid summer will cause the same thing to happen again in a year. I usually lay flat and allow things to dry a few days before I handle and trim them, but perhaps I should put them into the hangers as soon as they're printed before they start to dry out? Or is this a lost cause and I should just dry press mount them and frame them?
Title: Re: Humidity and poster hangers
Post by: dgberg on July 17, 2023, 08:50:12 am
Even for temp hanging we mount our posters to 3/16 foam board with attached adhesive.
Yes it is an added cost but it keeps them flat and if sold they all ready to hang or frame.
No dry press required for adhesive foam board. We pay about $2.39 a sq. ft. for 4x8' sheets.
Title: Re: Humidity and poster hangers
Post by: Ryan Mack on July 17, 2023, 11:43:54 am
You use a hand roller to mount it onto the adhesive?
Title: Re: Humidity and poster hangers
Post by: dgberg on July 18, 2023, 08:02:43 am
When I first attach the print I burnish it down by hand with a little bleed, flip it over and trim with a utility knife.
 Since I have a laminator I run it through. It is a very strong adhesive and using a j roller works as well.
Title: Re: Humidity and poster hangers
Post by: mearussi on July 20, 2023, 05:02:40 pm
Even for temp hanging we mount our posters to 3/16 foam board with attached adhesive.
Yes it is an added cost but it keeps them flat and if sold they all ready to hang or frame.
No dry press required for adhesive foam board. We pay about $2.39 a sq. ft. for 4x8' sheets.
Are you saying that you've found foamboard that doesn't warp, because all foamboard I've ever used, even the 1/2" stuff, has warped.  Now Gatorboard I've never had warp.
Title: Re: Humidity and poster hangers
Post by: mearussi on July 20, 2023, 05:20:57 pm
I hung up 4 40" prints using a poster hanging system and with the seasons changing and higher humidity there is a lot of rippling. I am wondering if it's worth reprinting them or if going back through another dry winter and humid summer will cause the same thing to happen again in a year. I usually lay flat and allow things to dry a few days before I handle and trim them, but perhaps I should put them into the hangers as soon as they're printed before they start to dry out? Or is this a lost cause and I should just dry press mount them and frame them?
If you use 2x coated paper that won't warp. But it's more expensive.
Title: Re: Humidity and poster hangers
Post by: Ryan Mack on July 20, 2023, 06:34:01 pm
If you use 2x coated paper that won't warp. But it's more expensive.

Can you point me towards an example of such? I usually print on Hahnemuhle baryta papers, they aren't cheap to begin with.
Title: Re: Humidity and poster hangers
Post by: mearussi on July 21, 2023, 12:21:33 am
Can you point me towards an example of such? I usually print on Hahnemuhle baryta papers, they aren't cheap to begin with.
Moab Entrada Rag 300 is a popular one, but it's matte.
https://www.itsupplies.com/Moab-Entrada-Rag-Natural-Coldpress-300gsm-s/6055.htm
There are also these (also matte):

https://www.itsupplies.com/Premier-Smooth-HotPress-FineArt-Museum-Grade-Natural-White-s/3972.htm?searching=Y&sort=13&cat=3972&show=16&page=1

https://www.redrivercatalog.com/browse/auroranatural.html

and there may be others

Title: Re: Humidity and poster hangers
Post by: dgberg on July 21, 2023, 08:24:07 am
Are you saying that you've found foamboard that doesn't warp, because all foamboard I've ever used, even the 1/2" stuff, has warped.  Now Gatorboard I've never had warp.
For almost all of our canvas prints that get mounted we use 3/16 or 3/8" gator mounted with Miracle Muck.
For the cheap banners foam board is perfect. Great way to present them mounted and of course they are meant to be framed, which makes anything flat.
Title: Re: Humidity and poster hangers
Post by: MfAlab on July 28, 2023, 02:59:45 am
If you use 2x coated paper that won't warp. But it's more expensive.

What is 2x coating actually? Warping foamboard is due to the difference in elongation between paper and board. Gatorboard is strong enough to resistant deformation.
Title: Re: Humidity and poster hangers
Post by: mearussi on July 28, 2023, 07:25:12 am
What is 2x coating actually? Warping foamboard is due to the difference in elongation between paper and board. Gatorboard is strong enough to resistant deformation.
2X means it's coated on both sides which cuts down warping significantly.
Title: Re: Humidity and poster hangers
Post by: Ryan Mack on July 28, 2023, 02:27:16 pm
2X means it's coated on both sides which cuts down warping significantly.

Ah, interesting. I have some two-sided papers. Never knew it would work better here.