Nope, gold series soap, used only microfiber, I would never put a brush on anything but my wheels or tires unless I was planning to wetsand afterwards.
But its not horrible, its only in a few spots on the roof and a drip from my drivers side mirror, you dont see it unless I point it out or you're a fellow autogeek or autopian member...
Since you asked, the bottle was sealed when I got it, I had to remove one of those peel off things from under the cap. It doesnt smell acidic, it doesnt smell at all, and it has great cleaning ability and lubricity too, left a nice shine actually....
The spots are definitely in the shape of collapsed foam bubbles, must have been a higher concentration in those areas?
This whole thing is confusing to be honest, im puzzled at how it happened myself, but hopefully theyll send some inspector out after I fill out their forms and I'll get a full or partial repaint.