Install and Paint the Wooden Glass Stops
Apply a thin bead of glazing compound to the exposed side of the glass at the frame (Image 1).
Re-install the wooden glass stops, or add new wooden stops as needed. Use a brad nailer to secure the wooden stops (Image 2).
Paint the wooden stops. Painting the wooden stops down to the glass ensures a paint seal between the glass and the wood. It's a good idea to prime new wooded stops prior to installation, when possible.
Using a hammer can be dangerous around glass. The nail gun is a better choice.