Primers for Paints & Coatings

Primers are essential to ensure the long-term stability of layered building systems. WACKER offers organic- and silicone-chemistry-based solutions addressing different primer functionalities, such as substrate hydrophobization, substrate consolidation and bonding between the substrate and coating.

Solutions

VINNAPAS^® Polymer Dispersions

The penetration potential is determined by measuring the amount of CaCO₃ that is bound by 2 g of dispersion. The higher the final weight of the CaCO₃ agglomerat, the better the penetration of the dispersion into the substrate.

VINNAPAS^® polymer dispersions provide excellent adhesion and ensure good penetration of the surface, thus strengthening the substrate and controlling its absorbency.
In outdoor applications, hydrophobic VINNAPAS^® dispersions ensure high water repellency and good barrier properties. VINNAPAS^® dispersions are suitable for formulating primers with or without the use of fillers such as sand and pigments. For open-pore substrates such as concrete, cement and gypsum plasterboards, grades with small particle sizes are available.

Benefits

Good impregnation due to high pore penetration
Excellent barrier properties
Low, uniform absorbency
Good adhesion even on critical substrates
Bridging of small cracks
Good strengthening of the construction surface

SILRES^® BS Silicone-Based Primers for Coatings

Silicone-based primers create a hydrophobic zone beneath the coating, improve adhesion and provide decorative coatings with lasting protection from water.
Our broad SILRES^® BS portfolio includes water- and solvent-based primers. Paints can be made self-priming by adding the primer directly to the coating.