Sounds more likely that a previous occupant has lubricated all the locks with wd40 or similar and that they have solidified at the same time.
How to get glue out of door lock.
Take a small wire or a match and place some super glue on the end of it.
The number one way of preventing super glue from sticking to the inside of a lock is to soak the lock in diesel.
Wash out the back lock with isopropyl alchohol lighter fluid or similar and lube it with graphite when dry.
How to remove super glue from a lock step 1.
From a locksmith or hardware store.
The engineer tried to remove the glue using various techniques but it was dry and had hardened to the point it could not be removed.
Pour a little bit of diesel into a bowl and leave the padlock soaking overnight.
Before getting this near the keyway remove any excess glue or add glue if there is not enough.
Unfortunately glued locks is a very common act of vandalism.
Do not get acetone on any plastic parts as acetone can damage some plastics.
Too much glue may harm the lock.
Dip a cotton swab in nail polish remover that contains acetone.
Super glue in the locks what idiot would do that.
Not enough will keep the glue from sticking.
Lube the two new locks by blowing in powdered graphite.
A nail file helps wear down super glue residue.
One other thing we ve has good success with has been by take n the lock appart and leaving it soak in a mix of napth fuel and paint thinner it softens up the glue for a wee bit of time to work.
Rub the acetone on the super glue on or in your.
The good property company susannah cole.
This will create a film on the mechanism and keyway preventing it from sticking.
The only option he had was to remove the cylinder and replace it.
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The least invasive method would be to inject some acetone into the lock and hope it frees it up.