I've used my SF L4 in "wet" environments and have been pleased except for the weird beam distortions which occur when smears and droplets of water get all over the lens. And so I got to thinking, if Rain-X works on windshields, why not on Pyrex lenses? Well, it does, and wonderfully! I clean the lens with Windex first, then apply 3 coatings with a cotton swab and buff with a cotton cloth. Now the lens repels water like quicksilver. The beam stays beautiful and the lens even seems to resist finger prints to some degree.
I would not use this on any plastic lens or on any pre-treated lens like the FlashlightLens UCL but it should work fine on Borofloat and Pyrex. Also, be very careful if there is O-ring exposure near the lens. The solvents in Rain-X can do damage to most plastics and rubbers.
Enjoy!
Wilkey
I would not use this on any plastic lens or on any pre-treated lens like the FlashlightLens UCL but it should work fine on Borofloat and Pyrex. Also, be very careful if there is O-ring exposure near the lens. The solvents in Rain-X can do damage to most plastics and rubbers.
Enjoy!
Wilkey