I get the Simple Green later today and will try it out. That mold release on those 3050 is tough to get off, the Clorox worked a bit, but really not good enough.I went for a quick google and simple green sounds pretty good. Most soaps have petroleum of some kind in them and that's not good for rubber. Isopropyl 99% and acetone were listed also. I would sacrifice a bit for science and try simple green and a nylon dish scrubber. If it doesn't work. it will still be on there and I would move on to one of the other two. :iono:
i will report back tomorrow.