09/03/2026
Why does paint start peeling?
In many cases, the problem starts before the finish coat ever goes on. Poor surface preparation, incompatible coatings, excess moisture, or improper drying conditions can all affect how well new paint bonds and performs over time.
Cleaning, light sanding, and using the correct primer for the existing surface are especially important when working over older oil based coatings or previously painted wood. On exteriors, wood movement also plays a role. As wood expands and contracts with changes in moisture, older layers of paint can begin to loosen, bubble, flake, and peel.
A lasting paint job depends on more than the paint itself. The preparation, products, and conditions all matter.
Beautifying, protecting, & preserving the Bay. The BP way.