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How remove coating from lightbulb? Answered

Anyone have an idea what the inside of this light bulb is coated with, and how to remove it? It's not the usual white powdery coating. It's darker and a little clearer. I tried the salt method, but it did nothing.

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Downunder35m
Downunder35m

Best Answer 4 years ago

I don't think it is coated, I assume it is acid frosted.

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iceng
iceng

Reply 2 years ago

+1

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Ceiling cat
Ceiling cat

Answer 4 years ago

Ooooh. Shoot. I think you're right.

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Downunder35m
Downunder35m

Answer 4 years ago

If I am right and you don't need it to be heat or chemical resistant:
Try some diluted clear acrylic paint ;)
Make it really thin and runny, move the bulb around then let the excess drip out and allow to dry.
We used this trick to make frosted bathroom windows almost perfectly clear.
But might be easier trying to find a clear light bulb??

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Ceiling cat
Ceiling cat

Answer 4 years ago

It's worth a shot. I'll try it. Thanks for the tip!

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steveastrouk
steveastrouk

Answer 4 years ago

It used to be silica fume

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DanielW356
DanielW356

2 years ago

Try 90%+ Isopropyl Alcohol! I had an older frosted lightbulb I had this problem with, and that did it.

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cerberustugowar
cerberustugowar

4 years ago

maybe try scraping it with something like a screwdriver tip or a wire. If that doesn't do anything, it might actually be part of the glass like Downunder35m said?