Foundry

Levasil® colloidal silica for Precision Investment Casting and Refractory Fiber Bonding

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Thanks to high temperature tolerance our Levasil® colloidal silica products are used as a binder in foundry applications.


PIC - precision investment casting

Producers of components used in hi-tech industries know that customer tolerance for imperfection is non-existent. Precision investment casting processes need to produce nearly flawless products.

Levasil® colloidal silica offers several advantages. Besides increasing the capacity for greater mold intricacy, colloidal silica can withstand temperatures of 1500°C with little shrinkage and good resistance to thermal shock.

All components created with PIC can benefit from using colloidal silica including turbine blades for aerospace engines, turbines and turbo fans, components for the automotive industry and household appliances, and medical instruments and implants.

RFB - refractory fiber bonding

Manufacturers within the RFB and ceramics industries know that the tolerance to high temperatures is of paramount importance.

Levasil® colloidal silica offers the perfect functional profile for these purposes thanks to its ability to withstand continuous operating temperatures of 1500°C with little shrinkage, excellent tolerance to thermal shock, and chemical inertness.

Commonly used as a binder in the manufacturing of large, molded, high-temperature insulation parts/blocks – mainly for steel, aluminum and glass industries and manufactured in a vacuum-forming process – colloidal silica will also increase the strength and resistance of products to oxidation and corrosion.

Related applications

Refractory materials

Nouryon offers a broad range of Levasil® colloidal silica for refractory materials and a game-changing solution for more durable magnesia-based materials.

Featured products

Levasil colloidal silica

Levasil FO830

Levasil® FO830 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 slightly uneven, spherical shape, and are present in a narrow particle size distribution. The physical appearance of the dispersion is a translucent liquid, slightly more viscous than water. Levasil® FO830 is produced for world-wide distribution.

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Levasil colloidal silica

Levasil FO1440

Levasil® FO1440 is an alkaline, aqueous dispersion of colloidal silica that is approximately 40% 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 slightly uneven, spherical shape, and are present in a narrow particle size distribution. The physical appearance of the dispersion is a translucent liquid, slightly more viscous than water. Levasil® FO1440 is produced for world-wide distribution.

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Levasil colloidal silica

Levasil FX160 D

Levasil® FX160 D is an acidic, aqueous dispersion of colloidal silica that is approximately 30% solids by weight. The silica dispersion is stabilized by absence of electrolytes and the amorphous silica particles carry a none charged surface. 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 an opalescent liquid, slightly more viscous than water. Levasil® FX160 D is available for world-wide distribution.

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Levasil colloidal silica

Levasil FX170

Levasil® FX170 is an alkaline, aqueous dispersion of colloidal silica that is approximately 40% 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 wide particle size distribution. The physical appearance of the dispersion is an opalescent liquid, slightly more viscous than water. Levasil® FX170 is produced for world-wide distribution.

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Levasil® colloidal silica your key to unlocking functionality

Our portfolio covers the full range of properties from particle size, surface area, size distribution to surface modification. This allows us to deliver the perfect product for your application.

Discover our broad portfolio

Get in touch!

For more information about our Levasil® colloidal silica products, please contact our experts. We look forward to hearing from you.

 

 

If you prefer to call us you can reach us at:

China, Shanghai: +86 21 22205000
Brazil, Jundiaí: +55 11 45894800
Germany, Cologne: +49 221 995850
India, Mumbai:+91 22 6842 6700
Japan, Tokyo:+81 356436001
Singapore: +65 6635 5327; 6635 5203
Sweden, Bohus: +46 31 587000
Taiwan - Greater China, Taichung: +886 4 23270520
USA, Houston: +1 312 3206109

Levasil® is a registered trademark of Nouryon in several countries worldwide.

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