Diolen epoxy lamination is first to fail in peel test


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The Mould Destroyer
The Mould Destroyer
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Hi,

I've laminate a sheet of the Diolen 200g black with 72h epoxy (1h work, bought from a local dealer)
the surface was a peel ply surface (the red line one you offer)


I have a specific project with a hard requirement that i need to glue the Diolen to birch baltic plywood.
I've created a test with multiple glues to try and set them up 
But never actually got to test the glues themselves because the surface of the laminated Diolen was the first one to fail, detaching from the wood leaving the peel ply surface on the wood and came out bare bone.

Now one reason can be the epoxy itself, which i think is less likely
The lamination process itself could be the problem? just a fabric on the table with some weight on it (flat object)

Can it be that Diolen does not bond to the epoxy very well?

* I've done a video of the process, posting it is a lot of work for me but if its crucial to figuring it out i will post it per request.

Will appreciate your help, i'm working on it for a long time and its currently a bust, i'm discouraged
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Hanaldo
Hanaldo
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Yeh understandable, but if it doesn't work for what you're doing then you're throwing away your time, which is worth a lot more. Anyway, if you want to keep trying it, I would suggest keeping it warmer for a good amount of time. Put it in a box in front of a heater, see if you can get it as high as 50-60° C. Even 30-40° would help. Keep it there for a day or two (obviously not unattended) and see if that helps. 

Sealing the wood is also not a bad idea, just brush a coat of resin on and let that cure solid, then scuff it up with 120 grit before trying to bond your laminate on. This will stop the wood taking resin out of the joint.

As for glues, its difficult to suggest anything without knowing what part of the world you're in, but you're probably not finding anything because you're using the wrong search term. Technically a 'glue' is an adhesive made from an organic compound like animal collagen, and these are not what you are wanting. Search for synthetic adhesives. There are an plethora of options, from epoxies to polyurethanes to acrylics, etc. You don't need anything fancy, so possibly look for a construction adhesive like Megapoxy 69, that would be my pick for this application.
GO

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