Coroplast and Epoxy Resin

gm280

Supreme Mariner
Joined
Jun 26, 2011
Messages
14,605
ElGringo, from what I seen online about such a product, I'd say epoxy, vinylester and polyester resins will not work with that stuff. The type of material is pretty resistant to a lot of chemicals if you look at the specs. So unless you can contact the manufacturer and get positive assurance, I would not use it for boat structural construction. But that is my uneducated opinion...
 

ondarvr

Supreme Mariner
Joined
Apr 6, 2005
Messages
11,527
If you are talking about the typical Coroplast, then no, at least not for marine applications.
 

BWR1953

Admiral
Joined
Jan 23, 2009
Messages
6,281
From the OEM FAQ page. http://www.coroplast.com/technicalinfo/faq.htm
Q: Is it possible to bond or glue two pieces of Coroplast together?
A: Polypropylene is great for many uses due to the fact that it is resistant to chemicals; unfortunately the same properties make it difficult to bond using chemical bonding agents. However, several products have been developed recently by companies such as 3M that are designed to bond polypropylene structurally. Coroplast has not yet tested these products fully. 3M's Scotch-Weld? Structural Plastic Adhesive DP-8005 is available from Grainger and other distributors for industrial use.
Heat welding with proper tools is an excellent method to bond two sheets of Coroplast[SUP]?[/SUP].
 

ElGringo

Cadet
Joined
Mar 22, 2014
Messages
21
I have a Dragon cut out of coroplast, I want to bond it to the side and then glass over it and smooth it up to look like it was cast into the original fiberglass. I do not plan to build anything from it. I don't want to completely waste my time by having it fall off.
 

ondarvr

Supreme Mariner
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Apr 6, 2005
Messages
11,527
if you are using it in that way it should be fine, glassing over it will lock it in place, a good bond isn't needed.
 

chasmo

Seaman Apprentice
Joined
Aug 29, 2011
Messages
32
I just found some coroplast panels and was going to try to superglue them for small projects
 
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