I picked mine up yesterday and did a chunk of tshirt. Neat stuff, mesmerizing to watch. Problems: not durable, easily rubbed off, so no good for a surface that routinely is touched or handled. The shirt was awesome, but, once water gets underneath the treated layer, its no good. So you would have to treat the inside and outside of the shirt. We are going white water rafting in a few weeks, and I was thinking how cool it would be to do our bathing suits, step off the raft and our clothes be dry. Not gonna be doable
But for things like outside fixtures, birdhouse, things of that nature, I think it would be cool. Not sure how long it is UV stable?
Conclusion:
Awesome toy, good for specific projects, but not for most, questionable durability and sure as hell aren't doing a phone. It does not dry clear. Even has a warning on it telling you it does not dry clear and to not use it on electronics. I was thinking my go-pro and rear camera on the truck, but not gonna happen.