How to fix scratches in a CRT face?

[kvflyer]

I have an RCA CTC-9 that I will eventually finish restoring. When I got it, it had a brightener on the 21CYP22. It measured zero emission on the Sencore. I had gotten a car load of used CRTs some time ago from a guy near here. Many were weak and have since gotten the deep six. One tube that I had I knew was a color. No numbers on it but it was identified from pictures as a 21CYP22 because of the anode locations etc.

So, I rebuilt the power supply capacitors, and installed the used CRT. It has a good bright raster but needs the rest of the obvious work done. When I cleaned the face of the tube, it has a couple scratches on it. Yes, I know it could lead to failure there. But this set has a good safety glass in place.

My question (finally cut to the chase ) is this: Does anyone know of a good fix to fill the scratches? Is there a car windshield epoxy type of stuff like the windshield guys use? Or could one fill them with epoxy and then polish it out?

Didn't know if anyone has had experience with doing this.


Thanks in advance!