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Originally Posted by Yamamaya42
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Unless the glue in the tape is conductive, NO it's not a substitute. Slip Plate is fairly affordable and is essentially aquadag spray paint. If you want to continue restoring sets this $18 can will respray many CRTs for future projects.
https://www.amazon.com/Slip-Plate-Pl.../dp/B005ESITFQ I got 3 roundy CRTs and 2-5 black and white tubes out of my last can....I'd have gotten more out but the mixing ball was a glass marble and it eventually chipped up and the chips clogged the spray valve...I ended up carefully venting the remainder of the can into a bottle where it dried on me before I could use it all...I need to order another can one of these days.
Many sets especially those with doorknob HV caps don't need all their dag....But the dag has to be grounded, and every bit of dag has to be electrically connected to every other bit or arcing will occur between day islands. This arcing creates electrical interference, HV ripple and if strong and sustained can locally heat the CRT glass and cause implosion in some extreme cases.
In a pinch Blaster graphite spray lube from the hardware store can work but it's resistance is a bit too high for the application....it's basically watered down slip Plate.