Neither of the posts meet the standard for CE. One or the other might have been acceptable for Space as a science post but there is a more stringent "suffer no fools" attitude by all the members that post there, so it is risky to post in that venue unless you are certain you know what you are talking about. Reasonable questions are usually well received but once they are answered it is not wise to argue with the answers as if you knew the answer in the first place. I read a lot of the stuff there but seldom post anything.

All things considered, OT is probably the safest place to post it.

P.S. There is no known glue for PET but the world waits anxiously.

P.P.S. Posts like this probably belong on Community. :)