Extra-boiled linseed oil can be used as a reinforcement additive in Allbäck Linseed Oil Paint to harden the surface and give a finish with a higher shine.
Add about 5 - 10% of the Linseed Extra Shining Oil directly into the linseed oil paint and stir well.
Note : Linseed Extra Shining Oil can make the paint much thicker. Add Allbäck Boiled Linseed Oil to regulate the thickness to the desired, working consistency.