We sell a good number of replacement Bakelite parts, but it just isn’t economical for us to produce everything.
When replacement isn’t an option, you can try to restore the Bakelite part. Here is a good tutorial on an old Bakelite radio.
In short, clean the piece, rub it thoroughly with 1000 grit steel wood, and then polish with Brasso. I’ve also heard that Simichrome polish works well and might have a little bit of chemical reaction with the Bakelite that helps the restoration.
The video did not show/explain what was and was NOT used on the clear plastic (specifically the tuner window). Was the clear plastic avoided with all but the initial wipe pads?
No idea; it was just a relevant video I found on YouTube. I would contact the video author through YouTube.