Thorough exterior painting preparation will lead to a successful paint project. Preparing properly will help the paint last longer, look better and it will prevent future problems such as mold growth, chipping and peeling. Supply and Gear PreparationThere are many painting tools available on the market. Woodworking is a good pastime. When you get started, however, you might find out that you're having some difficulties with precision. It is not that easy to produce a perfect rectangle or square while keeping track of all your measurements.