bonding aluminum w/adhesive- Araldite

[Charly]

Has anyone used Araldite 2015 in boat building apps? I Just read about constructing foils from aluminum and using this product to hold things together. Makes me curious also about this and other uses. Anytime I can avoid welding it would be nice to have an alternative.
Thanks

 

[CDK]

Araldite 2015 is an epoxy resin that can be used to bond metals. With proper preparation the bond is quite strong, but not a real alternative to welding.

 

[El_Guero]

CDK, why not?

 

[CDK]

Strength of course! A weld has the same strength as the base material, the bond between epoxy and aluminum maybe 15-20% of that.

 

[El_Guero]

80% loss of strength in the bond?

Did I read that right?

 

[Charly]

Sorry for "shooting from the hip" on this thread... I should have done a search first.

Much good reading here:
http://www.boatdesign.net/forums/materials/bonding-aluminum-epoxy-2629-4.html

 

[jonr]

I suggest that the concern is long term corrosion. If the tiniest bit of moisture can get to the aluminum/glue line, it may cause weakening of the bond. Ie, I'd be concerned about strength after 20 years near salt water.