Allback Shellac Primer
Description
Unique to Allback, Shellac Primer is made from pure shellac suspended in water rather than in alcohol. It is an effective sealer that can be used in many ways and without a harsh odour.
Use Shellac Primer on absorbent, indoor surfaces such as drywall, plaster, and wood, in order to even absorption and require fewer coats of paint.
Reduce the risk of stains such as water damage, soot and nicotine from showing through paint with an undercoating of Shellac Primer.
Shellac Primer can be sanded wet or dry and hardens all the way through without troublesome cracks due to shrinking. In the case of wrinkles appearing in the dry linseed oil paint film, wet-sand the area with Shellac Primer. Dry the surface and paint again.
This primer dries quickly, but hot air can reduce the drying time to a few minutes.
Documents:
Concise Handbook About Allback Linseed Oil Paint 
Le Petit livre de la peinture à l'huile de lin Allback