Well folks, I did the unthinkable! That question I have seen so many times and even searched for myself! Feather finish/skimcoat over the bathroom sink! We purchased our home a year ago in August. It's outdated, to say the least: when I look around, there is so much to do, it's impossible to pick a place to start. I have done some random things- the cornices, my dining table and have painted some rooms, experimenting with colors: I really have nothing to lose. I wanted to try feather finish counter tops, but we are replacing ours with quartet... so I did my mother-in-law's. She loves them. Instead of tearing out our shower, I thought about using the feather finish- but... everyone and everything that I have read, advises against it. I can't help but think... I'm positive the first person that covered their counters with this stuff was likely told "this product is not recommended for that application" and they did it anyway. So.... I thought- why not? I'll try it in my sink. My counter-top was recently replaced by my future son-in-law. His family has a counter-top business and we are fortunate enough to get the leftovers! He put in a beautiful slab of "Brazilian dream" quartzite- but the sink was just a standard, plain white bathroom sink. I figured if the sink can handle water on a daily basis, toothpaste, soap, grime, etc., the shower should be able to handle shampoo and soap/water. So... here we go! Everything I have read about feather finish says to start by sanding the surface. I didn't. This tutorial is FULL of shortcuts! I wanted to skip steps and make this as easy as possible- I cleaned the surface with alcohol. Made sure there was no dirt/grime, mixed up the feather finish, (I used some color) and layered on the first coat. I know from other projects, not to worry even a little, about how the first coat looks. It ALWAYS looks bad: finger lines, white peeking through, etc. just put on a thin coat and let dry. (About 20 min)