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PDF | 4.9 MB - Wacker Chemie

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ThE BASIS fOR<br />

QUALITy<br />

VINNAPAS ® dispersions provide primers<br />

with the necessary properties for the<br />

next layer to function properly.<br />

General Benefits<br />

• Good impregnation due to high penetration<br />

into pores<br />

• Excellent barrier properties<br />

• Low and uniform absorbency<br />

• Good adhesion of emulsion paints and coatings<br />

even on critical substrates<br />

• High compatibility with different substrates<br />

• Good consolidation of construction surfaces<br />

• Bridging of small cracks<br />

Application Spectrum<br />

• Adhesion-promoting layer<br />

• Equalization of low absorption properties<br />

• Barrier layer for migration protection<br />

• Construction surface consolidation<br />

• Stain blocking/resistance<br />

Ideal for Many Applications<br />

Most buildings are built one layer upon the next.<br />

Primers are essential to ensure the long-term<br />

durability of each subsequent layer, either for<br />

interior or exterior applications. Under outdoor<br />

conditions, primers require high water repellency<br />

and good barrier properties, which is where<br />

hydrophobic dispersions such as VINNAPAS ® are<br />

24<br />

needed. Dispersions with small particles penetrate<br />

well into the surface and consolidate open-pore<br />

substrates such as concrete, cement and gypsum<br />

plasterboards and control the absorbency of the<br />

substrate.<br />

Test Method: Application of 2 g Dispersion<br />

Penetration Potential of Primer Dispersion as<br />

Deep Sealer<br />

Weight [g] of bound CaCO 3<br />

3.2<br />

2.8<br />

2.4<br />

2.0<br />

1.6<br />

1.2<br />

0.8<br />

0.4<br />

0<br />

Calcium carbonate bound by product<br />

Compacted calcium carbonate<br />

VINNAPAS ®<br />

240 HD<br />

VINNAPAS ®<br />

202 HD<br />

Tested at 10% solids content<br />

VINNAPAS ®<br />

224 HD<br />

Standard<br />

dispersion<br />

Penetration potential of 2 g<br />

of a 10% dispersion.<br />

Depending on the dispersion<br />

properties, the penetration<br />

potential in the CaCO 3 matrix<br />

and the bonding capacity are<br />

different.

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