I have tried this myself - using a grinder to "wet-sand" aluminum plate,
using resin as a wetting agent. Then mixed the epoxy directly on the plate,
working in well.

Held up for a few years, but eventually bond broke. Of course, it may have
had something to do with the aluminum being used as a "skid plate" under the
bow of a plywood boat, for hard ledge landings. The 1/8 plate was worn more
than halfway through before it de-laminated.

Good luck, and let us know how i works!

Sal's Dad


"Roger Derby" wrote in message
nk.net...
It's been suggested that one first coats the aluminum with the epoxy.
Then, while it's still liquid, scrub the aluminum with a wire brush to cut
thru the oxidation and permit a bond to the real aluminum.

Roger (I haven't tried this, myself.)

http://home.earthlink.net/~derbyrm
"William R. Watt" wrote in message
...

There was a discussion in this newsgroup recently about gluing broken
aluminum with epoxy. It seems instantaneous oxidation of exposed aluminum
prevents a good bond with epoxy.

John McCoy ) writes:
I have an aluminum casting which has broken. Does anyone have any
experiences or recommendations on the likelyhood of success, glueing
it back together with epoxy? I have West System on hand, and can
fairly easily get other products (e.g. Aluminax). Any tips,
techniques, or pitfalls I should be aware of?

thanks,

John


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