1. Allowing Things To Dry 100%
2. Painting a first layer over the edges of the tape itself.
By painting over the edges of the tape you create a barrier for your other layers, keeping them all in check! The project looks great and is a great inexpensive diy solution! Check out her full post with more pictures and information on her medicine cabinet build!
PS, Have you seen her house tour yet?
(Photo curtosey of DoorSixteen)