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Architectural paints

Silicate paints

The natural way to secure longer lasting protection and color

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Adding Levasil® colloidal silica into your silicate paint formulation allows you to improve durability, weather resistance and anti-soiling properties

Potassium silicate in combination with colloidal silica is the main binder in sol silicate paint. With Levasil® products we offer biocide-free or low biocide solutions. Colloidal silica reduces alkalinity, lowering the pH and solubility of the binder, hence improving the weather resistance of the paint. Furthermore, it helps minimize internal stress, improve film properties and adhesion, otherwise a potential problem in inorganic coatings.

The anti-soiling properties of the sol-silicate paints are a result of colloidal silica making it very hard for dirt to adhere to the painted stone or masonry. All this gives your inorganic coatings qualities that secure longer lasting protection and color.

Read more in this published article with a short summary of our study: Use of surface modified colloidal silica in 1-pack sol-silicate paints

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Colourful houses with silicate paint

Finnfix® CMC is a high-quality product that can be used to create thicker water-based paints with excellent storage stability

Finnfix® CMC (sodium carboxymethyl cellulose) is perfect in paints with very high pH such as silicate paints. Finnfix® grades give improved rheological properties and at the same time they are a stabilizer and water-retaining agent.

Performance advantages:

  • Perfect dissolution properties for high pH
  • Increased water retention
  • Efficient thickening and good stability

Our Finnfix® and Levasil® products can be advantageously used together in your silicate paint formulation.

Featured products

Levasil colloidal silica

Levasil CC151

Levasil® CC151 is an alkaline, aqueous dispersion of colloidal silica that is approximately 15% solids by weight. The silica dispersion is sterically stabilized and the amorphous silica particles carry a negative surface charge. The silica particles are discrete, have a smooth, spherical shape, and are present in a narrow particle size distribution. The particles have also been surface modified with an epoxy silane. “Hydroxyl number” for 2-pack systems; 0.45 mole OH/kg product. The physical appearance of the dispersion is a clear liquid, slightly more viscous than water. Levasil® CC151 is produced for world-wide distribution.

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Levasil colloidal silica

Levasil CC301

Levasil® CC301 is a neutral, aqueous dispersion of colloidal silica that is approximately 30% solids by weight. The silica dispersion is sterically stabilized and the amorphous silica particles carry a negative surface charge. The silica particles are discrete, have a smooth, spherical shape, and are present in a narrow particle size distribution. The particles have also been surface modified with an epoxy silane. “Hydroxyl number” for 2-pack systems; 0.45 mole OH/kg product. The physical appearance of the dispersion is a clear liquid, slightly more viscous than water. Levasil® CC301 is produced for world-wide distribution.

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Levasil colloidal silica

Levasil CC401

Levasil® CC401 is a neutral, aqueous dispersion of colloidal silica that is approximately 40% solids by weight. The silica dispersion is sterically stabilized and the amorphous silica particles carry a negative surface charge. The silica particles are discrete, have a smooth, spherical shape, and are present in a narrow particle size distribution. The particles have also been surface modified with an epoxy silane. “Hydroxyl number” for 2-pack systems; 0.45 mole OH/kg product.” The physical appearance of the dispersion is a translucent liquid, slightly more viscous than water. Levasil® CC401 is produced for world-wide distribution.

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Levasil colloidal silica

Levasil CT24 PL

Levasil® CT24 PL is an alkaline, aqueous dispersion of colloidal silica that is approximately 30% solids by weight. The silica dispersion is sodium stabilized and the amorphous silica particles carry a negative surface charge. The silica particles are discrete, have a smooth, spherical shape, and are present in a semi-wide particle size distribution. The physical appearance of the dispersion is a clear liquid, slightly more viscous than water. Levasil® CT24 PL is produced for world-wide distribution.

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Downloads

Article - colloidal silica in silicate paint

Pitture e Vernici EuropeanCoatings – Jan/Feb 2021

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Featured applications for paints and coatings

  • Architectural paints Discover our portfolio of thickeners, stabilizers, water retaining agents, lightweight fillers and more for decorative paints and coatings.
  • Industrial coatings Levasil® colloidal silicafor durable metal coatings that shield steel and prevent corrosion and to reduce magnetic losses in insulation coatings.
  • Automotive coatings and body fillers Expancel microspheres are used as a blowing agent in plastisols, for underbody coatings and sealants and for lightweight body fillers with improved sandability.
  • Cool roof coatings Expancel® microspheres are optimal for developing flexible cool roof coatings and Levasil® colloidal silica enhances the anti-soiling properties.
  • Inks and pigments Expancel in printing inks lets you create surface effects on textiles and more. We also offer dispersing agents and products for emulsification.
  • Sealants and adhesives Use our Thioplast® polysulfide resins, Expancel® microspheres and Levasil® colloidal silica for improved performance in sealants and adhesives.
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Levasil® and Finnfix® are registered trademarks of Nouryon in several countries worldwide.

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