Had this same problem with my basement weaking .. add about 1ft 3-4 ft away from the house of dirt outside building up your grass line.. extend your gutters , and in the lowest lower corner of the basement , i rented a jackhammer an put in a sump pump basin myself , for like $300 , with holes an when you get heavy rain the water table will raise an fill the basin , youtube it ...took a weekend
Yes it can. I used it to level and outdoor concrete patio.
What is sq ft coverage
You can use the rapidest primer. It is around $11.99 each gallon.
can I use this product to self level and not cover with tile
I did not stain it but it took and held paint well through weather and wear.
Yes you can, but you are placing some kind of shower pan or shower base on top of the concrete leveler
Yes.
I forgot to add that you should give it a good scrubbing first. Sometimes the top layer is a weak slurry coat.
in spots or the complete drive? WOW! I have done mine in spots without a problem, but doing a whole drive.....I don't know.