Superglue ?

G'day all. I've had a run of superglued Lockwood 590 (Adams Rite ) lock cylinders lately. Mostly, I end up just drilling them out and replacing the cylinder, but I was wondering if anyone has had any real success with say, heat application (no not a hair dryer :-) .... or a superglue dissolving chemical. The problem with drilling the lock cylinder out is quite often they are on a restricted key system which may be difficult to match & replace. Thanks for any tips fellers.

Reply to
Steve Paris
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The solvent required is acetone. Which is usually the active ingredient in fingernail polish remover.

Incidentally, acetone is incredibly flammable, and burns with a nearly clear flame. It is mildly toxic. Fully miscible (dissolves in) water. In case of fire, apply huge ammounts of water, and the fire will go out. We hope.

When I was about 13 years old, the pharmacist down the road (Chemist for Englishers) dropped a jug of acetone in his pharmacy. He did try a portable extinguisher, and did manage to get out safely. However, the entire pharmacy was a total loss.

I did use heat one time to clear a superglued cam lock. I took the lock out to a parking lot, and held the lock in vise grips, held by the tailcam. Applied a propane flame, and then while it was still very hot applied a stream of WD-40. Worked nicely, freed up the lock.

Reply to
Stormin Mormon
<snip>No Off

Another thing about Acetone-It will eat almost anything off of almost anything. Long ago,I made the mistake of pouring a small ammount acetone into a plastic cup. Can't remember what I was using it to remove, but anyway, after I put back the glass bottle and went to pick up the cup, I noticed the acetone had eaten the plastic right where the air,acetone, and plastic met.

The acetone continued to eat the plastic until there was a puddle of it.

So be careful.keep straight acetone in the glass.


Reply to

I think it's also the active ingredient in lacquer thinner, which I poured into a cup and had a similar reaction.

and don't ever leave a muriatic acid soaked sponge on a piece of porcelein!!

Reply to

Care needed, too much heat will anneal the wafer springs.

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Cyanoacrylates (Superglue) is soluble in methyl ethyl ketone, methylene chloride, nitromethane, and acetone. The best solvent is nitromethane, but it expensive and difficult to obtain.

CA debonder is a combination of nitromethane, and acetone.

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Once the glue crystallizes, it's nearly impossible to remove or soften and once it has crystallized inside the moving parts of a lock, you're not likely to salvage it.

Some good reading by Elaine Davidson.

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This depends on the kind of plastic.

Acetone does fine in polyethylene and polypropylene. It will eat ABS, styrene, acrylic etc.

If you need to use a plastic cup for any solvent, look for the number 1, 2,

4, or 5. Any other is likely to melt.
Reply to
Roger Shoaf

Pricey, yes. Difficult to obtain?

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If you need to extinguish Acetone which is a Polar Solvent I would use a Foam Extinguisher. Ideally AFFF or Alcoseal. But lets try not to light it in the first place. Lots or water = running fire.


Reply to
Jim Smith

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