Soda is water soluble, right? Rinse with water?
Chemically stripping layers of old paint off a set of floats is a huge pain in the butt. What do you do to finish a chemical strip job? Rinse, rinse again. Blow out the seams and rivet heads with compressed air. Rinse again.
There is a guy up around Kasilof who used one of the newer Citrus based paint strippers last year on his 180. He said he sprayed it on and left it overnight in a warm hangar. The next morning most of the paint was off the metal and there are no ventilation problems. I am outside right now using the old style stripper and a pressure washer.