" Do I need to take consideration of what material the tub itself is made of?"

YEP!

If fiberglass find a corvette mech.

If renting, I'd think about the ability of returning the tub to it's original condition at the end of lease... unless you are contemplating a repair that is BOTH functional AND aesthetically pleasing in appearance.

If you are serious about it. This may work on cast iron only.
Heat the area with a torch, when it gets hot throw cold water on it.

"If you are serious about it. This may work on cast iron only.
Heat the area with a torch, when it gets hot throw cold water on it. "

You are kidding, right? lol

Some Internet advice is terrible. Cold water on hot cast iron?

and the landlords response?

cold water on hot cast iron..um..what about the porcelain on top of the cast iron?
crack.flake off..you get what you pay for on the internet..

-dkenny

If the tub has dent in the bottom and no crack, it is not cast iron. Cast iron does not dent without breaking.

My idea probably wont work work for you. The support, on the tub or the floor have deteriorated.

Those of you who say this wont work. I have seen a dented cast iron tub fixed this way.

"Those of you who say this wont work. I have seen a dented cast iron tub fixed this way. "

Any pictures showing the intact glaze? lol

I just bought a porcelain on steel tub and it has a dent on back but porcelain looks fine. Will this be a problem in future?