A deep-penetrating, vapor-permeable coating designed for the impregnation, equalization and fixation of all types of mineral exterior and interior substrates. It is used with absorbent, poorly bonded surfaces, prior to application of subsequent coats to improve adhesion. Due to its nanoparticles, it has the ability to penetrate extremely well, so it is well suited for the restoration and rehabilitation of cultural monuments and historic old buildings, when it is necessary to further bond and strengthen dipapidated and damaged surface renders.
PREPARATION AND APPLICATION
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. Drying time minimum 24 h.
From +5°C to +25°C. Do not work under direct sunlight, rain or strong wind.
50-80 ml/m², depending on absorbency and roughness of the surface.
SHELF LIFE AND STORAGE
12 months in original sealed packing. Store at temperatures from +5°C to +25°C, protected from direct sunlight and frost.
1 l; 5 l