I tried that with a sample of some EPIC-treated cotton fabric – as a ‘windshirt’ in the rain. It sort of worked, until we went through some scrub. The EPIC treatment scraped off quickly and I got rather wet.
I discussed this with a techie from the company, and he admitted straight out that this sort of thing would happen. The cotton substrate was simply unable to handle it. In a word: fragile.
Ever seen what happens to a buttefly’s wings if they get scraped? The surface coating is immediately damaged, and falls to pieces. That has been the problem with all of these surface-modification treatments so far: they don’t last in the field against abrasion.
Cheers