Proper painter's tape application and removal.
Ensure good paint lines by following these simple application and removal steps:
Finally, remove the tape by pulling it backwards slowly, at a 45 degree angle in order to achieve crisp, professional-looking lines.
It is important to make sure the paint has not bonded with the tape, as this can result in an uneven edge when the tape is removed, taking pieces of paint with it. To prevent this, use a razor blade to break the bond between the tape and the paint, then pull back slowly. If you notice any tearing, this is generally a sign that you are pulling the tape too fast.