Haven't had Flory Wash attack any paint that I have used it on. I think its because its truly water-based, with plain water being the only liquid ingredient in it. I have run into issues with other washes that say they're water-based, but I think there were other things like ammonia in those. Flory is the only thing I have used that was truly safe on any finish. Its just water and a super-fine clay-based pigment. I really hate to use the expression "game changer", but its definitely been just that for me. Takes all the stress and worry out of weathering.
Used it for the first time on this F-16CJ, after having a near-disaster on it using Tamiya panel line accenter. I only did a small portion near the nose with the Tamiya, and it started stripping the paint down to the primer, through an acrylic AND a lacquer clear coat. The damage was thankfully confined to that small area, and I can just say it is paint wear due to air resistance. The rest was done with Flory black, and while the tiny Tamiya portion took hours to get somewhat right...I did the whole rest of the jet with Flory in about 45 minutes, which included the 30 minute drying time I allowed for the Flory.