Cloudiness with super glue

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pandsrowe
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Cloudiness with super glue

Post by pandsrowe » Mon Nov 13, 2023 3:44 pm

I'm currently constructing one of the Kippo resin buildings kits and glueing it together with mainly two pack epoxy and exterior grade construction adhesive. So far no issues but yesterday I attached some infills under the canopy with super glue that are made from foam board. Although the adhesive has worked, it has left a white cloudiness on the foam board around the joint. I am aware of this phenomenon when glueing clear acrylic for windows but have not come across it affecting other materials in this way.
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Re: Cloudiness with super glue

Post by philipy » Mon Nov 13, 2023 4:12 pm

I've seen a similar effect quite often.

I don't know for sure, and I'm happy to be told I'm talking from you-know-where, but I suspect it is to to do with where you have handled the parts and have left finger oils and/or moisture on the surface. The superglue then reacts with that and creates the white film. It's the same phenomenon that is sometimes used in forensics to lift finger prints!
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Re: Cloudiness with super glue

Post by -steves- » Mon Nov 13, 2023 5:14 pm

It's caused by the vapours, essentially laying down a film if super glue. Good ventilation helps, hence it's worse when the area is particularly enclosed, like a canopy or inside a cab, so leave things to dry in front of a fan and see if that helps. Also, don't use kicker if the glue can be seen as you will end up with crusty bits of white glue. Again, I have no scientific explanation just my personal experience.
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