During my ambitious house fixings up (2 years in the process, and I'm finally almost done with one room of painting lol). The bathroom is one of the next projects.

I'm not sure what the tub and shower is made out of, it's probably the original (1970's), feels kinda like plastic of maybe fiberglass, but I'm not sure. Point of this post... the surface is a bit aged, and that causes soap scum and gunk to build up pretty quick on the surface.

I don't want to replace it since it's in good shape aside from that, plus, that involves money and labor.

I guess the best idea I've come up with is to buff it out really good, then seal it with some sort of "wax" like product to recondition it. That's where I'm stuck, y'all have any suggestions of said product to recondition it?