Levasil colloidal silica, supplied by Nouryon and available through Chemtrade South Africa, is used across a wide range of applications where performance, consistency and reliability matter.
Although colloidal silica is often unseen in the final product, it can play an important role in improving functionality, durability, and surface performance across many industries.

From sand and water to everyday performance
Nouryon describes Levasil colloidal silica as a product of two natural ingredients: sand and water.
In practical terms, colloidal silica can help improve key functionalities in products and manufacturing processes, supporting better performance in both everyday and specialised technical applications.
Levasil colloidal silica applications across industries
Manufacturers use Levasil colloidal silica across a broad range of industries and applications.
According to Nouryon, colloidal silica can help produce casting moulds with greater intricacy and high-temperature tolerance, commonly used in precision investment casting of airplane components.
In concrete applications such as precast, colloidal silica can work as a stabiliser and durability enhancer.
Manufacturers also use colloidal silica in the intumescent interlayer that creates fire-resistant glass for hospitals, libraries and other buildings.
Supporting performance in coatings
In coatings, colloidal silica can help improve surface properties and overall product performance.
Nouryon highlights the role of colloidal silica in improving anti-soiling properties in coatings such as silicate paints and elastomeric cool roof coatings.
Levasil colloidal silica can also support coating performance by improving hardness, pigment dispersion, and open time in suitable formulations.
For paint and coatings manufacturers, these benefits can contribute to cleaner-looking surfaces and improved durability. They can also support better long-term performance.
Wider industrial applications
Levasil colloidal silica is also used beyond coatings and construction.
Manufacturers also use colloidal silica in gel and AGM batteries. It offers a cost-efficient, easy-to-use solution for these applications.
In diesel engines and power plants, colloidal silica can act as a high-purity binder that supports catalyst performance and helps reduce emissions.
These examples show the versatility of colloidal silica across industries where performance, reliability and process efficiency are important.
Levasil from Nouryon, supplied by Chemtrade
Chemtrade supplies Levasil colloidal silica from Nouryon as part of its speciality raw material portfolio for customers in South Africa and Southern Africa.
Through Chemtrade, customers can access product information, supply support and guidance on selecting the right Levasil solution for their application needs.
Contact Chemtrade for Levasil colloidal silica
For more information about Levasil colloidal silica, product availability or technical suitability, please contact the Chemtrade team.

