Having used P21S' TAW quite a bit, I'd say a lot of the sealant stripping ability would depend on how it's diluted. It WILL strip wax, even diluted. Used straight, I'd be surprised if it DIDN'T strip even SG, or at least degrade it significantly. As ema said, it's a citrus degreaser, and it's pretty strong stuff.
I'd just use it for wheelwells, undercarriages, engine compartments, etc. BTW, I've pretty much switched to EF Hi-Intensity. Seems to work just as well for general cleaning and it's a LOT cheaper (still keep some TAW around, though).