Didn't get to paint last night, but did finally tonight. I painted from where the floor joins the wall up to 4' two times then on the third pass I went all the way up the wall. All that with a 3" (actually 4 by the time I was done) chip brush. They don't gunk up as fast as regular brushes. After a little over 4 hours of painting, I ran out of steam. If I didn't have to be up at 6 am, I'd probably have finished out the bucket. I'd like to get two more coats on the floor and finish out the bucket.