Is there some easy way to change the wettability of a sphere?

Question

I am doing some experiments with spheres impacting a body of water and would like to change the wettability of the sphere.  Is there some relatively easy way to do this?  A procedure in one paper is extremely involved and in another they mention spraying it with something called SY-Supercoat-SHFC3150 and leaving it in a dust-free container for a few days.
However, this looks to be a product which is available in China: is there some very close alterative which I could buy which would do the same thing?

niels nielsen · Accepted Answer

certainly there is. At auto supply stores, you can buy something called RAIN-X liquid that you apply to the windshield of your car. This causes the surface to become unwettable, and rain drops that land on it will ball up into spheres and get blown off the glass by the wind.
The effect diminishes as dust and dirt get stuck onto the glass surface, but for the purposes of an experiment, it will work fine.

Is there some easy way to change the wettability of a sphere?

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