Orvis has one too I think. I have tried them, I even used Scotch Guard as it works great on furniture.
But, in the end, if a trout slimes it, even a couple of hits, it will sink. Plus it doesn't mention CDC which a lot of my dry flies have.
Cheap enough to try.
I just use Muscilin Red (the Green contain's Silicon which is a no no with Bamboo, so I do not use it) and Frog Fanny...that is all I need.
The Mucilin is also fantastic for leaders because it comes with a little sponge pad.
Some things are better left alone, Even though, some feel they know better.