Digging into the CTC-9

[DaveWM]

yea I was not really thinking of roundies when thinking about the banding, I have several caterat rectangle one that have no safty glass in front of them.

so perhaps the factory had a fixture that held them apart and then the pva was just injected in. That does not sound to impossilbe to duplecate.

I can see holding it sideways with the injection port on the bottom and then leaving the top un sealed with tap, fill'r up and then tape off the top side.