How To Fix Crack ((link))ed Window Putty -

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

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

Wait at least 7–14 days before painting. This allows the putty to form a hard skin. how to fix cracked window putty

Here’s a quick, step-by-step guide to get it done.

Apply exterior paint over the cured putty, overlapping slightly onto the glass for a waterproof seal. Use a heat gun on low (or a

Don’t paint the putty too soon—it traps solvents and leads to future cracking.

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.) Start with the putty—it’s cheaper than a heating bill

Gently work a putty knife or small chisel under the cracked sections. Remove only the loose or damaged putty, leaving firm areas if they’re still bonded well.