How To Fix Crack — [portable]ed Window Putty

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.

Got a drafty window? Start with the putty—it’s cheaper than a heating bill. how to fix cracked window putty

Apply exterior paint over the cured putty, overlapping slightly onto the glass for a waterproof seal. Brush away dust and debris

Use a heat gun on low (or a hair dryer) to warm the cracked putty. Don’t overheat—just enough to soften it. how to fix cracked window putty