Linseed oil putty "feeds" the wood. The oil soaks into the grain of the window sash, helping to preserve the wood and prevent rot.
This hardening process is slow, which allows the putty to stay flexible enough to expand and contract with the wood and glass as temperatures change. 2. Ground Whiting (Calcium Carbonate) what is window putty made of
That’s it. When you mix them into a stiff dough, you get window putty. Linseed oil putty "feeds" the wood
Absolutely. Many window restorers do. A simple recipe: what is window putty made of