02-19-2015, 11:41 PM
You need to wrap your brain around what a flour-chemical does. A fluoro-chemical lowers surface tension. Lowering the surface tension of the fiber doesn't vacuum off. OK maybe a small percentage of the protector will get vacuumed away. But the lowered surface tension will continue to displace soil. Its molecular attributes will last a very very long time. I hope I'm explaining this clear enough.