I have a bicycle frame that needs paint removed. First, this belongs to someone else. I am using my soda blaster and it is removing the paint, but it is moving at a very slow pace. I was told that even chemical paint stripper wasn’t doing the job that is why he wanted to go the media blast route. The paint is at the welds, so it makes it harder to sand by hand. The frame is aluminum, what would Aluminum Oxide do to this frame if I blast it? Any suggestions or comments will be greatly appreciated.