Surface preparation:Surface preparation should be carried out in accordance with SP 71.13330.2017.
- Clean the base of dust and dirt. From previously painted surfaces, remove loose layers of old paint and whitewash.
- Sand hard and firmly adhering glossy surfaces to a matte finish, and remove sanding dust.
- Surfaces previously covered with chalk or lime paints must be thoroughly cleaned until completely removed.
- Intensively absorbent surfaces should be pre-primed with Bergauf Techno Primer deep-penetrating primer to increase the reliability of the coating and reduce the consumption of the primer paint.
Work procedure: The surface to be painted must be dry and clean, the base temperature for work must be from +5°C, the room temperature during paint application must be from +5°C to +35°C, and the relative air humidity must be below 80%.
It is recommended to use primer paint from the same production batch to avoid differences in shade.
Stir the primer paint thoroughly. It is necessary to stir with a wide, flat stick or a construction mixer at low speeds, carefully, avoiding the formation of air bubbles, for 1–3 minutes.
It is not recommended to mix the material by shaking the closed container. After transportation and/or active mixing, if air bubbles appear, the primer paint needs to settle until they disappear.
Apply the primer paint to the prepared dry, clean surface with a brush, roller, or spray gun.
For rough surfaces, such as textured plasters, brick, concrete blocks, and relief ceilings, it is recommended to use rollers with a pile length of 12–25 mm. For rough surfaces, such as putties, plasters, concrete, glass fiber, and painter's fleece — with a pile length
of 8–12 mm. For smooth surfaces, such as drywall, MDF, chipboard, and architectural decor elements (architraves, moldings, ceiling cornices) — with a pile length of up to 6 mm.
The primer-paint is ready for use. For airless spraying, dilution with water by 5–10% is permitted.
When carrying out work, avoid exposure to direct sunlight and conditions of high humidity.
After finishing work, wash hands and tools thoroughly with warm water.
Safety precautionsWork should be carried out using personal protective equipment for hands, eyes, and respiratory tract. Use in well-ventilated areas.