Profi brushes are brushes for professionals or do-it-yourselves who work and surface-treat wood frequently, and a professional result is a prerequisite for them.
Thanks to the natural hair used, they can process oils to reach the depths of the wood.
This is very important for applying oil coatings, as they work by bonding the layer to the wood and the oils harden inside the wood, not on its surface.
Using the right brushes is, therefore, essential for the correct result.