Where it cannot be easily and neatly repaired.
Fix cracked window putty.
Wear leather gloves to protect your hands from burns.
In a well ventilated area prepare a two part epoxy.
Repairing window putty step 1 replacing putty.
Cracks caused by normal settling or foundation problems or minor earthquakes can appear above windows.
Clean the glass with dish soap.
Step 3 apply the putty.
If it s a hairline crack.
Take the short time needed to dry.
Repair a cracked window glass tabletop or even a mirror with this easy step by step guide.
If the putty is badly cracked you can pry away large chunks quickly with a putty knife.
Don t be tempted to just re apply new putty.
Wash the glass around the crack with a drop or two of dishwashing soap on a.
Step 2 prime newly exposed woodwork.
Bits and pieces of old putty and possibly glass shards will fly around quite a bit during scraping so eye protection is a must.
Replacement is the answer.
With a heat gun in one hand and a stiff putty knife in the other heat the putty to soften it and gouge it out.
Wear eye protection and gloves.
To fix these cracks clean and sand the area around the crack.