The substrate to which BK-Penetrat is applied must be clean, dry, free of oil residues and old coatings.
Before application, loosely bonded parts should be removed as far as possible.
Before use, dilute BK-Penetrat with water in ratio 1:3 and mix well.
For good penetration it is essential to follow the dilution instructions.
Apply with a long-hair brush, long-hair roller or by spraying.
With very old, absorbent surfaces, apply the primer twice using the wet-to-wet principle.