A: It's just like a ceiling white paint color
A: No.According to the instructions on the tube it says that it will cover 13.2" with a 1/4" bead. But it is a great product for fill-in finish nail holes and caulking smaller areas. It matches standard white laminate really well and I used it with generic white Behr cabinet and trim enamel and it matched perfectly.
A: It doesn't say that it is on the tube, and since it is made specifically to match painted white moulding, I would say probably not. Better to get something that specifically says it is waterproof.
A: No, this product is not waterproof.