Quote:
Originally Posted by Electronic M
The face has some dark blotches in the phosphor so not exactly "no damage"...Still ignoring the blotches it did hold up rather well.
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I believe the blotches were from dirt and debris that fell into the tube, not air or moisture, though I can imagine that extremely humid conditions could probably cause problems.
As far as the Aluminizing breaking down I doubt that would happen, it's done with the same Aluminum vapor depositing process as the parabolic mirrors in projection sets and they survive in normal atmospheric conditions for decades, it is in fact quite a tough coating based on my experience in trying to remove some of it from a mirror.