I'm looking for a hydrophobic coating or hydrophobic substrats ?

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James E Hanson

If you want a native contact angle over 110 there are not a lot of choices. See thjs

https://www.accudynetest.com/polytable_03.html?sortby=contact_angle

or this

https://en.m.wikipedia.org/wiki/Contact_angle

we have a method that increases contact angle by ~50-60 degrees for most polymers

Article Photoreactive Superhydrophobic Organic-Inorganic Hybrid Mate...

Houssine Benabdelhalim

Thank you :)