Chip out the old glazing compound carefully with a window zipper deglazing tool or putty knife. A heat gun or torch can soften the putty for easy removal. Use a putty knife or pliers to remove the ...

and it's so pliable you typically have to apply it with a putty knife. Like window glazing or plumber's putty, wood putty is a mixture of plastic and oil-based solvents. Because it doesn't harden ...