Before applying the putty to glaze windows, paint shellac in the wooden rebates of the window that will come into direct contact with the putty. This will seal the wood and prevent the oil from being drawn out of the putty over time, leading to premature putty failure.
Dust with Allback Pumice Powder and paint right away with Allback Linseed Oil Paint, or wait for 24 hours to allow the putty to set up before painting. There is no need for the putty to be completely dry before painting with Linseed Oil Paint, unlike with other putties and paints. This is a major time-saver.
Allback Linseed Putty can be kept for up to one year at room temperature in a sealed container. If the putty becomes hard, warm the putty and then knead until smooth on a cold surface. Can be frozen for long-term storage.