http://confocal-microscopy-list.275.s1.nabble.com/Protective-window-for-a-confocal-microscope-tp7591445p7591459.html
> On Oct 27, 2020, at 11:55 AM, Jason M. Kirk <
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>
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> I have to second Doug's recommendation for the Aquastop from Zeiss. We use this on both of our inverted confocals and I have found it to be the most robust protection I've ever used. In our core, it has held up to exposure to oil for well over 2 weeks while I was away on vacation and before I got a chance to inspect the system after returning.
>
> The difference between the Aquastop and other solutions such as hair ties or scrunchies is that the latter only really works for small amounts of oil over very short periods of time. If you have a user that over oils for one imaging session lasting an hour or so - these scrunchies will work as long as you immediately clean up.
>
> They fail to stop oil penetration over long periods of time with multiple users. Oil that gets down into your optivar is chronic over oiling - a scrunchie is no match for that. Under normal conditions I regularly inspect the instruments - and even after exhausting levels of training some users just don't get it, are careless or just plain don't care.
>
> So we do our best to regularly inspect - but the Aquastop has prevented more than a few situations where oil could have ruined our objectives.
>
> Good luck!
>
> -Jason
>
> Jason M. Kirk
> Technical Director, Optical Imaging & Vital Microscopy Core (OiVM)
> Baylor College of Medicine
> Ph: 713.798.6486
> Email:
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>
http://www.bcm.edu/oivm