We are getting new countertops, and we need to remove the sink before they install them. The sink is attached with a hardened glue.
We can't seem to get the sink off without bending the metal.
How can I get the sink off?
First check and make sure that you have removed any fasteners under the counter top holding the sink in place.
Next, you can try wedging a putty knife in between the lip of the sink and the counter and working your way around. Depending on the adhesive used, a solvent like paint thinner may help. A heat gun or hair dryer may also be able to soften the adhesive.
If you're still having trouble, you can always take the sink off with the old counter top and work on it later.
Depending on what type of adhesive was used when it was attached, it may not be worth your time to salvage the sink.
In your situation, here is what I would do:
In any case, this is likely not going to be an easy job. It will be quite time consuming, and you may end up damaging the sink in the process. You should at least consider replacing the sink as part of the project.