Tried "clearing" some plastics with the peroxide/oxyclean approach. Had access to strong (35%) Peroxide, unfortunately I was a bit off on my mixture ratio with the oxyclean resulting in an out of control chemical reaction. It melted the bag they were sunning in and part of the plastics themselves. Things looked normal when I placed them outside and walked away, when I poked my head out the shop door I saw a column of smoke and heard a bunch of bubbling and hissing. New set on order, lesson learned.

Also managed to crack the plastic backing on a coil while trying to remove a stubborn sleeve. Both on the same day. Pinball parts suppliers love me.