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I have to attach two 4' x 8'x 4mm coroplast signs to both sides of an existing 1/2" MDO sign. I plan to use 3/4" screws and some type of adhesive like liquid nails. What type of adhesive would you recommend or do you have a better solution? Thanks, Judy
-------------------- Judy Pate Signs By Judy Albany, Georgia USA 229-435-6824
Live simply...Love generously...Care deeply...Speak kindly...Leave the rest to God. Posts: 2621 | From: Albany,GA,USA | Registered: Nov 1998
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Judy, I'm thinking double-sided tape. Much neater to work with. I get mine from my sign supplier. Be sure to put galvanized washers under your screws too. Love....Jill
Posts: 8834 | From: Butler, PA, USA | Registered: Jan 2001
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I'd be afraid of that lifting no matter what adhesive is used. Vast difference of expansion rates between mdo and coroplast. I'd go with screws and washers making sure to cut oversized slots for screwholes and not clamping the screws tight.
-------------------- Mike O'Neill
It has yet to be proven that intelligence has any survival value. - Arthur C. Clarke
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Thanks Jill...double sided tape does sound a lot cleaner. Mike, I was wondering about any adhesive working on that slick coroplast surface. Also I forgot about expansion rates. Thanks, Judy
-------------------- Judy Pate Signs By Judy Albany, Georgia USA 229-435-6824
Live simply...Love generously...Care deeply...Speak kindly...Leave the rest to God. Posts: 2621 | From: Albany,GA,USA | Registered: Nov 1998
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Thanks Tom & Pat. This is a temporary sign but I figure they will leave it up as long as the coroplast lasts. Will consider silicone. Judy
-------------------- Judy Pate Signs By Judy Albany, Georgia USA 229-435-6824
Live simply...Love generously...Care deeply...Speak kindly...Leave the rest to God. Posts: 2621 | From: Albany,GA,USA | Registered: Nov 1998
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Judy, Two sided tape ONLY! Did a 4x8 so called temporary coroplast over MDO 5 years ago! Still is there! Use an Automotive tape, not that cheap foam stuff! As far as contraction and expansion goes........you're using coroplast! Don't worry about it. Have had bad luck with silicone!
-------------------- 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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Use Very High Bond Tape (VHB) by 3m. I tried this stuff at the place I used to work to see what it could do. It will stick like a weld to any clean substrate. Any!
-------------------- Jessica Woodrow P.O. Box 212 Edgar, WI 54426 Posts: 16 | From: Edgar, WI | Registered: Jan 2000
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Judy, Jessica is right. It is 3M Scotch brand VHB tape. I do not use silicone at all! It is nasty stuff and silicone and my sign shop don't get along! Compared to VHB tape, well, there is no comparison! I'll put VHB Tape up against silicone in any adhesive test! The only draw-back to VHB is, if you are doing long strips for a perminent bond, you better have things lined up right the first time as you are NOT getting it back apart! You have to be right the first time!!!! I got mine from a Glass shop. They use it for aluminum store front frames. No more screws! I see Fellers has a VHB Tape, but I have not used their brand.
-------------------- 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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Why use adhesive at all? I'm just wondering because one of my customers did that with a coroplast sign and it literally ripped to pieces over time. Then again, I don't know what product they used and it was probably up a few years.
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