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Author Topic: Lubricating plastic gears
Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003


 - posted July 26, 2004 06:05 PM      Profile for Paul Adsett     Send New Private Message       Edit/Delete Post 
Hi Tony,
I'm not sure that a very light coating of silicone would be visible to the naked eye. The main danger is the lens coatings, since even a very light layer of silicone would screw up the anti-reflection properties of the coating, manifesting itself as increased light light loss and loss of image contrast.
Must confess I had not thought about the furniture polish. The stuff I use (Favor) for polishing up the projector does not mention any silicone content. Here again Tony, I do not wish to be an alarmist. As I said, the situation with high power laser optics is quite different from visible light optics. But I think in general it is probably preferable to avoid silicone greases around any optical system.

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