Roll a small amount of glazing putty in your hands until it’s soft and pliable. (If it’s too stiff, a few drops of linseed oil can help.)
Brush away dust and debris. Lightly sand the wood frame and prime any exposed bare wood. Don’t skip this step—primer helps the new putty stick. how to fix cracked window putty
Noticed cracked, crumbling, or missing putty around your windowpanes? Don’t panic—and don’t call a glazier just yet. Fixing cracked window putty (also called glazing compound) is a simple weekend project that can improve energy efficiency and prevent moisture damage. Roll a small amount of glazing putty in
Roll the putty into a thin rope (about ¼–⅜ inch thick) and press it firmly into the gap between the glass and frame. Smooth it with a putty knife at a 45° angle, matching the profile of the old putty. Don’t skip this step—primer helps the new putty stick