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Dissolving Epoxy Answered

I have a project where I have an antique electronic part that is sealed with epoxy. Is there any way of dissolving the epoxy in order to view the original parts? This is so I can construct a replacement part.?

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kelseymhBest Answer (author)2009-09-29

It would help if you could attach a picture to the question text. If the "part" is what I'm thinking of, it's not epoxy adhesive but rather thermosetting plastic resin. Alternatively, it could be high-voltage potting compound. You would need different solvents depending on what the material actually is, which probably means knowing what the original antique component is.

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Foxtrot70 (author)kelseymh2009-10-02

The part I am working with is the High Voltage Tripler used in an Advent Video Beam 1000A. Yes I think that the compound is high-voltage potting compound.

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orksecurity (author)kelseymh2009-09-29

And for some things, which were potted specifically to prevent tampering, there may be circuitry which will cause 'em to self-destruct if that potting compound isn't present. For others... Last time I had to remove potting compound, I wound up doing so with a hammer and chisel. Luckily I knew exactly where the component I needed to replace was, and knew it was behind a heat sink which would protect the rest of the circuit from being damaged by this abuse. Even so, I couldn't unsolder it from the circuit board -- instead, I wound up breaking it off its leads, and then soldering the new one to the stubs of those leads.

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Prfesser (author)2009-09-29

Epoxy may soften enough to be removed by using methylene chloride. Might be available at home supply stores under paint solvents and similar. Test a chip of the material first. However...there is nothing that dissolves epoxy in the conventional sense. Epoxy is pretty tough stuff. Prfesser

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V-Man737 (author)Prfesser2009-09-30

Sulfuric acid?
No, don't do that

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lemonie (author)2009-09-29

Epoxy (set) can't be dissolved very easily. Kelsey is about right on this (given limited knowledge) You pick it off physically, then 'clean' with whaterver works - need more information as Kelsey.

L

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