Questions about Geistlich Window putty

You should oil the wood before applying the putty. Applying a thin layer of linseed oil or raw linseed oil to the wood helps the putty to seal better and adhere properly to the window frame. This step is common practice to ensure the putty bonds well and creates a durable seal around the glass.

The recommended time to wait between applying the putty and painting the first layer is generally about 7 to 14 days. This allows the putty to firm up properly before painting. Some sources suggest allowing up to two weeks for curing before painting to avoid issues like separation or wrinkling of the paint. The drying process involves oxidation and absorption of oils, which typically takes around two weeks to firm and about six weeks to fully harden. Painting after this initial curing period ensures better adhesion and durability of the paint layer.

That would be new to me, that the linseed oil based putty is applied inside.... :-)