In conversing with some other heads, it was mentioned that attaching HDU letters to MOD background us not a good idea.
I have some signs out that are built that way, and am in the process of building another. Why is this method discouraged? Is there something I can do to prevent problems? Cause, let's face it, it is a more econamical way to build a strong sign, rather than using thicker HDU and still having a wobble problem anyways.
I've never had an issue, but, I don't want to have to rebuild one either.
""Good judgment comes from experience; and a lot of that comes from bad judgment" - Will Rogers Posts: 3485 | From: Beautiful Newaygo, Michigan | Registered: Mar 2003
| IP: Logged |
posted
i think if you are just attaching letters its ok...however on signfoams website they no longer recommend laminating hdu to mdo as a means to rigidity on larger signs. basically because they expand and contract at different rates. also if the mdo starts to warp it will take the hdu with it. i have epoxied letters to mdo, dibond and metal wood...so far so good.
-------------------- Karyn Bush Simply Not Ordinary, LLC Bartlett, NH 603-383-9955 www.snosigns.com info@snosigns.com Posts: 3516 | From: Bartlett, NH USA | Registered: Jan 2001
| IP: Logged |
posted
It depends how you do it, Rick. Latigo has used corregated metal and 4mm Dibond for backing dimensional letters. On the Corregated metal he usually uses a light 1"x1" tube aluminum frame cuz it would fold over otherwise, no? And on Dibond he threads the stud into the pad and then uses a washer and nut on the surface and a washer and locknut on the backside. As long as you use enough studs there's no wobble.
posted
I can't imagine you'd have any problems, Rick, as long as the MDO is framed or supported in a way it can't bow or warp. Using good 2-side MDO is also a good way to guard against warpage.
-------------------- Dale Feicke Grafix 714 East St. Mendenhall, MS 39114
"I can do all things through Christ, who strengthens me." Posts: 2963 | From: Mendenhall, MS | Registered: Apr 1999
| IP: Logged |
posted
My only reason for not wanting to use MDO is the HDU letters are going to outlast the MDO by 2 or 3 times. I give a 5 - 7 year life expectancy on 3/4" MDO. 1/2" would be less. I also try to stay away from ALUMILITE, the corogated plastic/aluminum. In winter I could see water freezing and delaminating the material.
4MM Dibond attached to a good metal frame would be the way to go in my opinion. Buy you know what they say about opinions.
-------------------- Jerry VanHorn, Pres. Pure Sports Designs, LLC Pro Sign Design / United Wholesale Signs www.prosigndesign.comwww.unitedwholesalesigns.com West Liberty, OH 937-465-0595 866-942-3990 Since 1990 Posts: 925 | From: West :Liberty, OH | Registered: May 2004
| IP: Logged |
![[Cool]](cool.gif)
![[Bash]](graemlins/bash.gif)
![[Thanks]](graemlins/thanks.gif)
MUCH
![[Razz]](tongue.gif)
![[Smile]](smile.gif)
![[Wink]](wink.gif)
Printer-friendly view of this topic