Kohler STERLING 4700 Serie Guía De Instalación Y Cuidado página 9

Caulk here.
Bottom Track
4. Caulk and Install the Bottom Track
Apply a bead of caulk or sealant in the front groove on the underside of the bottom track.
Apply a second, smaller bead of caulk or sealant to the other edge on the underside of the bottom
track.
Install the bottom track on the ledge at the marked location.
Sterling 9 1054391-2-D