Radiant heat works through carpet in a bedroom.Your selection with a slab floor should take into consideration flooring techniques for your area, applications are different for Idaho than Florida, with vapor barries and find out if the slab was insultated.

Concrete is the easy part.  2 x 2 spacing with 1/2 inch rod; 6 inches thick walls/sides; vapor barrier as needed.   

"Mineral spirits" will work better but is more expensive and is not worth it for this application.Wear respirators with organic vapor cartridges, I recommend half-face 3M 6000-7000 series with 3M 6001 cartridges.

If water still ends up in the basement an interior perimeter French drain system, as well as a properly waterproofed slab (may need to pour a new slab with proper vapor barrier, drain rock, etc) may ve needed.

With these products your are looking at perm ratings,  will it allow vapor drive?

A vapor barrier is used to control where the moisture forms.

(No vapor barrier, damaged insulation.

Needs an ok (not perfect) surface underneath and use the vapor barrierfor the pulling tool from lowes is JUNK.

Stated income loans have vaporizes out here and you need 2 years tax returns to go full doc if you work for your self.Who ever is going to get the job needs to stay in the same field.

The concern is the sheetrock which is close to the cinderblock walls and vapor transmission.