posted
Hi All, I have used 18x14 coroplast for interior hanging signs and I have noticed a couple of them warping. The client wants more signs, but I'm scared to do any more with the chance of them warping or bowing. Is there anything I can do to prevent this? I thought of putting a couple of pieces of wire in the flutes. The client will not go for aluminum panels. Also what would you suggest for a 2' x 4' interior hanging sign? I'm thinking of using 1/4" PVC.
Thnx,
-------------------- BJ Carter ABC Signs & Graphics Appomattox,Virginia Posts: 31 | From: Appomattox, VA | Registered: May 2004
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posted
Simple, cut another 18x14 sheet of corro with the flutes running vertical and glue it to the back. ie flutes on two sheets at right angles. It won't bend or warp.
Use this trick for packing flute signs for postage all the time.
posted
What about some of that nice framing edging you can get for 3,4 & 5 mm substrates?
Forex, expanded PVC foam, from the people who make dibond, is good. There's a new version now where the face is a heat-smoothened version of the core.
-------------------- "Stewey" on chat
"...there are no limits when you aim for perfection..." Jonathan Livingston Seagull Posts: 7014 | From: Highgrove via Toowoomba, Queensland, Australia | Registered: Dec 2002
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posted
Simple ... cut another corro sheet same size but with the flutes running vertical. Glue to the back of the other sheet ... ie flutes are at right angles.
It won't warp or bend.
Use this trick all the time to pack corro signs for postage.
I found a good use for it, waste material on my AXYZ machine. I cut stuff through and into the coroplast to avoid cutting into the table bed. I beat the cr*p out of both sides of a sheet and then send it to the garbage where it belongs!!!
Do you find that works well? I've been looking for spoil board alternatives, but hadn't considered coroplast. I would wonder about the 'give' in ti being as it's not a solid material
-------------------- Graham Parsons Signs 'n Such Ltd Swift Current Saskatchewan Canada. www.signsnsuch.com
"Saskatchewan - hard to pronounce, easy to draw" Posts: 710 | From: Saskatchewan, Canada | Registered: Oct 1999
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posted
The thickness is pretty consistant but they won't last as long as some other materials....but it's so cheap, try it, I love putting that sh*t by the curb all cut up !
The other thing too, if you cut thin material like sheeting and like to work with a down shear bit, the cut out material actually goes in the coroplast cavities.
posted
Hiya BJ, I think you may have 2 issues you need to tackle. First is are the signs curling towards the lettered side of the sign? If so, what type of vinyl are you using? It could be that the vinyl is shrinking and causing the sign to curl. If that's the problem, you need to either change your choice of vinyl or letter the back side too.
The second issue may be temperature related. Where are the signs being mounted? Are they on a wall or hanging? If they're being mounted on a brick wall and there are drastic temperature changes in the environment, or sunlight signs on them and warms up one side, this can (although highly doubtful) cause them to bow too. Of couse you can just have come bad coroplast too
Havin' fun,
Checkers
-------------------- a.k.a. Brian Born www.CheckersCustom.com Harrisburg, Pa Work Smart, Play Hard Posts: 3775 | From: Harrisburg, Pa. U.S.A. | Registered: Nov 1998
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posted
Although this sounds like a good question.... why would anyone be concerned about a customer that wont go for aluminum as opposed to coro on a 18 x 24 sign?????????? Seems to me.....thats an excellent way to git rid of the cheapskate
[ May 16, 2007, 12:37 PM: Message edited by: Michael Boone ]
posted
I use Coroplast for campaign signs & temp job site signs only. Any attention given to old warped coroplast signs would be a huge waste of valuable time.
I assume the signs you speak of are similar to grocery store aisle identification signs.
If so, I agree with the PVC option. I'm sure he got a "great deal" on the original Coroplast signs, so be prepared for his "sticker shock" response.
Alumacore, .040-.063 alum., & Diabond are also viable options.
-------------------- Michael R. Bendel Bendel Sign Co,. Inc. Sauk Rapids, MN Posts: 913 | From: Sauk Rapids, MN | Registered: Jul 2005
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posted
The coroplas is really a temporary item. If he wont go for the more expensive solutions then your kinda between a rock and a hard place. No matter what you do it's going to cost more, the aluminum is the best, maybe you can sell him on the Idea that the panel can be reused, and re-lettered.
posted
Thnx for replies, I told the client that I was not happy with the warping of the couple of signs I did already and that if he wanted more, I would use Aluminum. He went for it and I'll feel a lot better about my work now. It turns out to be 60 18x24 signs he is needing and I wasn't gonna be proud of my work if it was gonna be a bunch of hanging warping signs.
Thnx,
-------------------- BJ Carter ABC Signs & Graphics Appomattox,Virginia Posts: 31 | From: Appomattox, VA | Registered: May 2004
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posted
Coroplast is CHEAP CRAP!!! To stop an 18"x24" sheet from warping, simply put an 18x24 piece of cheap vinyl on the back side.
-------------------- Tony Vickio The World Famous Vickio Signs 3364 Rt.329 Watkins Glen, NY 14891 t30v@vickiosigns.com 607-535-6241 http://www.vickiosigns.com Posts: 1063 | From: Watkins Glen, New York | Registered: Sep 2001
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posted
Your right Mike, and thats what I did. I had made up my mind that if he didn't go for the aluminum, then I wasn't gonna do it. I figure I would lose a lot more future business if people seen crappy looking signs hanging there.
-------------------- BJ Carter ABC Signs & Graphics Appomattox,Virginia Posts: 31 | From: Appomattox, VA | Registered: May 2004
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