answer is "i have no idea" its 3M solution that we use to dissolve 3D printer support material that smells lice citrus. GooGone is same type of solution but less strong so would take more time. I had to soak the towel in hat solution and get rubber soft. Once its softened started rubbing it with synthetic towel. More its exposed to chemical the easier to remove. I did mess up a bit by trying to use alcohol ( dont do that!!!! alcohol dissolves paint and causes scratches to it) If paint gets removed you see white semy trancelucent plastic. If you see that then you screwed
in my case i made small dint with alcohol but i touch up with black marker. Technically best to do clear coat over theis but i suck with paint so i left those alone.
Another thing if you see white, its not end of the world, you can clean whole thing to white and then spay black and find some one like us who has fiber or galvo based co2 laser. Those machines can mark back original artwork so buttons can be re-manufactured easily. I was doing remarking for a friend on Porsche (not really commercially feasible projects but at least we can get car look totally new