When glazing a window one of the first things you ll need to do is remove any old glazing that s chipped or damaged.
How to fix cracked window putty.
Replacement is the answer.
Mix up the two part epoxy.
Step 3 apply the putty.
In a well ventilated area prepare a two part epoxy.
Steps to take when repairing puttying and reglazing a window place a drop cloth below the window to catch dust paint chips and pieces of old glazing.
Where it cannot be easily and neatly repaired.
If the glazing is still in place and looks good for part of the window it can stay but it s best to completely remove any glazing that looks chipped or loose because it can prevent the new glazing from adhering as it should.
Step 2 prime newly exposed woodwork.
Don t be tempted to just re apply new putty.
Wear eye protection and gloves.
1 place the window frame onto a flat table.
Wash the glass around the crack with a drop or two of dishwashing soap on a.
If it s a hairline crack.
Take the short time needed to dry.
Bits and pieces of old putty and possibly glass shards will fly around quite a bit during scraping so eye protection is a must.
Clean the glass with dish soap.
The only real reason to replace the putty is if it has become old and cracked or its integrity surrounding the glass has been compromised.
To fix these cracks clean and sand the area around the crack.