Tape it tight with the blue tape. Paint it with a 2 1/2 inch sash brush, don't thin the paint, and Let It Dry Comletely. The blue painters tape won't pull off the paint it's stuck too. That's why it's called "painters tape" You can leave the blue tape on for days and it won't pull the paint. Regular masking tape will. I use 3/4 inch tape and roll right down on it.