The concrete floor in my garage has a fair bit of spalling and I'd like to
resurface it.

What I'd really like to do is simply find a liquid coating that I could pour
over the floor, let it level itself out and set.

I'm not having much luck finding anything like this on Google.

Is this something I can do? Any ideas on what products to use and what it
would cost?

Floor is approximately 24'x32'.

Thx!