Currently working on installing a window recess and window sill in MDF. What I'm wondering now is how do I handle the latex sealant that goes between the recess and the windows? Should I apply it to the MDF before pressing it against the window or do I apply a line after mounting the MDF?
I prefer to place a thin string at the angle and then drag my finger over it. After that, I paint. I recall that I usually apply a primer first, then use soft joint sealant, and finish with the final coat of paint.