I am in the process of modifying a circuit by adding a small external circuit board and then wiring into the main board. I don't want the wires to move around when I'm done, but yet if I ever need to make repairs, I want to be able to remove them. I see some people using hot glue for such matters, but I don't think I'd be able to desolder the wires later without using a lot of force to remove the hot glue first. What could I use?

[snip] Silicone. Lots of different brands & formulations (RTV, Goop, etc.) Dab a small bit on an unused corner of the board and let it dry, to see if it can be peeled off cleanly. HTH

making wires on circuit board immobile but able to be removed later?

Nov 30, 2020 28 Replies

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Chuck 5 years ago

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Incidentally, to follow up a bit, I concluded that the reason why the original oil container leaked was due to thermal expansion of the oil through the container. The coil containment container was sealed with gaskets (at the top only) and I think the oil pushed through the gaskets

when temperatures in the environment were higher. Not sure, but the real test this time will prove/ disprove this as I refilled with oil but

leaving space between the oil and top/ gasket seal.

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Michael Terrell 5 years ago

Hard waxes generally contain acids.

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HW 5 years ago

Hot glue will release nicely with a drop of isopropyl alcohol.

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gregz 5 years ago

I tried some on copper once to test. If anything acid cleans copper. After evaporation no action exists, which is minimal time.

Greg.

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gregz 5 years ago

Goop is very strong stuff, hard to remove.

Greg

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three_jeeps 5 years ago

Look at Dow Chemical for silicon based products that are safe for electronics...I used some of their products in a similar application many many moons ago...damn if I can remember the product numbers... J

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Dave Platt 5 years ago

Dow 3145 is one such. You won't like the price very much, but it's MIL-spec'ed for this sort of purpose.

Dow's Dowsil 737 is a neutral-cure which seems of a similar nature - not a MIL-spec reference, but it's much more affordable.

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bruce bowser 5 years ago

I'm now wondering if liquid nails is a neutral cure or not. I guess I've used it with pot metal or the metal of the side of a panel (not significant).

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bruce bowser 5 years ago

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I'm sure that the container makes and oil in pole pigs won't have such a le ak problem as your home spun contraption. Not to say that hauling a decomm issioned transformer, capacitor or inductor from off of a telephone pole in to your garage for emptying is a good idea, either.

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