Tie wire on neon skeleton sign disintegrating?

I'm getting ready to start the repair of an old neon artwork that is assembled as a skeleton sign, and I noticed some of the tie wire has a white residue at a few of the contact points where it…

Hey Christine. Are you filling them with argon/hg or neon? An argon/hg fill won't require you to do much more than you would typically do while processing, but if you are filling them with neon you…

Very nice Zoelle!

Wow! What is happening in this photo? Is this neon words stacked on top of each other or an optical illusion? Very cool!