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Grimy glass?
HI Mike & All,
Alex wrote:
"Try cleaning it with a 50-50 solution of 99% Isopropyl Alcohol and demineralized water.. The Isopro should take care of any residue/stick substance... I wouldn't advise using windex, it is likely to leave a fine filmy coating on your mirror which is likely to degrade the views/images."
Agree with the isopropyl alcohol advice and it also cuts-down the beading effect as the water will tend to sheet-off rather than bead which in turn stops those annoying little dust-rings when the droplets evaporate. Personally, I don't think windex will leave much of a residue (if any) but I wouldn't risk it with the potential long-term effects on the coatings.
Don't be afraid to give it a good long (20mins) soak when you re-wash.
As others have advised, shining a bright light against the back of the glass in a darkened room will show pin-holes well and also reveal whether the coating is getting a bit "thin".
Good luck with it.
Best,
Les D
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