Foo - Chemists, or handy people, can you help?
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07-06-06, 10:36 PM
I have an aluminum case which is held shut by aluminum oxide epoxy. This stuff is a beast to remove, I was wondering if there is some chemical I could use to loosen the grip of this epoxy?
What is aluminium-oxide about the epoxy? Is it powdered aluminium-oxide in the epoxy? Usually the epoxy binders are organic materials. In either case, a basic compound will dissolve both organic matter and undo the oxidation of the aluminium...
The melting point of an epoxy will be lower than the melting point of Aluminum.
Have fun. :D
07-08-06, 04:01 PM
Yea but the catch is...
There is a 400 dollar PCB board inside this tight quarters case :)
07-08-06, 04:43 PM
I know that certain solvents are supposed to be able to disolve epoxy, but I can't remember which types. I would go to a hardware store and look at the back of cans of paint thinner and acetone and all that crap. One of them will work. Another thought is, might this just be a thin bead which you could cut with a razor knife? Even if there is a lot, you should be able to cut the epoxy with a sharp knife and a little patience.
There's not much that will disolve epoxy when it's fully cured, and the things that would work are either highly toxic or would destroy the PCB. You'd be better off destroying the case.
07-09-06, 08:13 PM
Yea, I'm thinking milling into the case is teh best bet. This is a pain :(
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