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Have you ever used Gorilla Glue on metal?


Wilbur

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Depending on what you are trying to stick together 

This works good for things with high vibration. I have parts held on the motorcycle with this. 

Screenshot_2019-11-18-17-15-57-1.png.77cde7cd9c1eb2b3894ebd29d124966f.png

This works good if the metal is clean. Works good when you need something to stick quick so you can get back on the race track. 

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But I still prefer to stick metal together the old fashioned way. 

Screenshot_2019-11-18-17-20-02-1.png.f246f52633e221dd66073c24ab042306.png

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3 hours ago, Don Cherry said:

Did it work?

Depends on the nature of the joint and the direction of stress.  Is it a lap joint, a T joint, a butt joint (maybe with a strap around the joint)

Which kind of Gorilla Glue was used.  If it was the original then it is in the Polyurethane family.  This note applies:  The one major restraint with the PU adhesives is their susceptibility to moisture, both during and after curing. The painting of metal surfaces prior to application can help. Protection from high loads in hot humid environments should be considered.

 

http://www.adhesivestoolkit.com/Toolkits/DesignGuidance/AdhesiveType.xtp

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That type of adhesive is good for porous materials. It cures in the presence of moisture but takes a while to do so. It will hold non-porous things together but so will Elmer's Glue.

https://www.3m.com/3M/en_US/bonding-and-assembly-us/applications/material-bonding/metal/?utm_term=ibg-iatd-bond-en_us-lead-bonding_assembly_metal-cpc-google-na-askexp-nb-mar19&gclid=Cj0KCQiAn8nuBRCzARIsAJcdIfPDrOFeIxEL3NfA6InHU1FpQzYE67ENPtfnyloHK0fgxNn9Ey-lF-MaAgHREALw_wcB

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The thickness of the adhesive in the joint can also make the joint strength better or worse.  I've had occasion to bond components subject to rapid heat rise to ceramic heat sinks using 3M scotch weld 2216.  When used straight up as mixed there was a problem with thermal expansion causing a separation of the joint due to shear.  We thickened the joint by mixing micro balloons or the equivalent of specified diameter into the epoxy to get a more flexible joint with much greater shear resistance.

If possible you can also strengthen the joint using a filament wrap similar to the manner that eyelets are bonded to a fishing pole.

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