The putty should slope from the glass down to the wood. This sheds water away from the glass. Flat or reverse slopes trap water and guarantee failure.
Happy glazing, and may your putty knife never slip. window putty repair
For stubborn putty, tap the putty knife with a hammer lightly—like a mini chisel. Once you remove the bulk, use the hook tool to clean out the rabbet (the L-shaped groove where the glass sits). The putty should slope from the glass down to the wood
—it will shrink, crack, and ooze out. Patience pays off. When to Call a Pro (And When to DIY) DIY if: You have basic hand tools, one afternoon, and the wood frame is solid. Happy glazing, and may your putty knife never slip
There’s something charming about old wooden windows. But let’s be honest—that charm fades fast when you notice chunks of hard, crumbly white stuff falling out of the frames. That “white stuff” is window glazing putty (or glazing compound), and when it fails, your windows fail.