I've never had issues with TT. As long as the glass is prepared correctly and you don't spray in hot or cold conditions, I don't see a problem. I NEVER Seal a back glass "for the hell of it" - I ONLY seal them when they are deteriorating to a point where it will get worse over time.

Not sure what to do now as just checked my kiss back glass and has just started to bubble in the middle of the kiss wording.Was a 10/10 now down to 8/10 not happy.
Have used TT before with no problems but not on a bally repro before.Should i go a head and do it as the bubbling only going to get worse or is there a better product to use.

Even a bigger problem is that i have a few other nos black glass and don't wont it to happen to them as well as all nos.Was going to TT them as well but don't no what to do or use now.

If i don't do something with them now ,they will start to bubble,and i will be not happy.
What other products can i use and i don't wont to spray them and then check 3 month later and find out that i stuffed them all.