I purchased some "ceramic" (amorphous silicon dioxide) hydrophobic spray and was curious if the marketing matched the reality. We'll look at the spray under the Atomic Force Microscope and Scanning Electron Microscope

There's a followup video!    • More rigorous analysis of "Ceramic" c...  

Note: This is the only "ceramic" spray I've tested, there are several on the market. Perhaps others are better, and perhaps I just analyzed this product poorly! Suffice to say I was unimpressed though

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==== Timeline ====
0:00 Intro
0:52 Ingredients
1:39 Coating Experiment
4:17 Atomic Force Microscope Results
7:28 Tangent: F35s and Sensitive Instruments
7:59 Scanning Electron Microscope Results
9:36 Conclusion