Dear builders,
which glue do you suggest to join paulownia and foam (XPS etc..) possible easy to find in Germany.
I would not use epoxy because need something that fill small gaps because of not perfect cutting.
Something with glueing time more then 20min
glue for different
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PrfctChaos
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Re: glue for different
In the past Ive used Epoxy, thickened with microballons, between foam and pauwlonia.
May consider Polyurethane as well. Curing time will be quite long though, as in a day or two most likely.
May consider Polyurethane as well. Curing time will be quite long though, as in a day or two most likely.
Last edited by PrfctChaos on Sat Jan 09, 2021 2:13 am, edited 1 time in total.
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Herman
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Re: glue for different
In the long ago past i.have used epoxy with microbubbles or colloidal silica. Can't remember which I preferred.
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tmcfarla
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Re: glue for different
If you don’t want to use epoxy, gorilla glue (polyurethane glue, if that brand isn’t in Germany) might work. I used it to attach to foam sheets for a board build, and it has held up well. It expands so it will fill gaps, but you need to clamp it down.
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fluidity
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Re: glue for different
Polyurethane glues come with different cure rates. All will expand to fill small caps and cure from moisture in the air. (or wood)
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merl
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Re: glue for different
The instructions for pu glue often mention the benefit added moisture. I think someone mentioned that it does not work under vacuum, which would make sense, unless sufficient moisture would do the trick. Anyone know the full story?
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Breze
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Re: glue for different
Little bit of mist with a water spray bottle is ok. Derriccio have a look at https://www.kleiberit-direct.com/1k-pur ... fe-5010000
and this https://oaseforum.de/showthread.php?t=175400
and this https://oaseforum.de/showthread.php?t=175400
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Re: glue for different
Gorilla Glue works fine in a vacuum. It cures by reaction with moisture, and usually just the moisture in the air is plenty to make it harden. Dampening the surfaces will speed things up. I usually use a damp paper towel.
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dericcio2
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Re: glue for different
thanks! interesting thread
both are available on ebay but the gorilla one cost double then this one. btw they looks almost the same type of glue: red pu one component. you propose is easy to buy in ebayand not so expensive
both are available on ebay but the gorilla one cost double then this one. btw they looks almost the same type of glue: red pu one component. you propose is easy to buy in ebayand not so expensive
Breze wrote: ↑Sat Jan 09, 2021 12:26 pmLittle bit of mist with a water spray bottle is ok. Derriccio have a look at https://www.kleiberit-direct.com/1k-pur ... fe-5010000
and this https://oaseforum.de/showthread.php?t=175400
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