Yeah too bad it does not work that good on other paints. Its local brand. I use paint stripper often and sometimes it is real hell with some factory paints (then its cheaper to get it chemically striped for me). I was surprised how easily this one came out. From my experience powder coatings are very easy to get rid of.
I use ordinary paint striper from local shop. Its weak for harder paints but for some small parts still good. Problem is that they are making it weaker every year because of stricter enviromental standards. Try get some industrial stripper, but that will eat your hands too hah.
I've used Circa 1850 Paint Stripper, works great for me. It's a gel too, so it kinda sticks to the frame as well. As seen here. www.pinkbike.com/photo/12109010