Colloidal silica is a stable dispersion of nano-sized amorphous silica particles in water. These particles are small (in the range of 2-150nm in diameter) and have a large surface area, which can dramatically impact the binding and reinforcing properties of many organic or inorganic systems.

Comprehensive Range of Colloidal Silica Products for Multiple Industry Applications
Nalco Water offers an innovative and diverse range of colloidal silica products that are designed to provide the features you need for your specific application.
Our colloidal silica production is known for controlled product quality, consistency, reliability and high-volume manufacturing capabilities.

What is Colloidal Silica?
What is Colloidal Silica?

Deep Colloidal Silica Expertise
- First patented colloidal silica process in 1941
- One of the largest colloidal silica manufacturers in the world
- Range of manufacturing plants worldwide
- Dedicated RD&E teams that focus on customized product development
- Internal technical support who help troubleshoot customer issues

Comprehensive Colloidal Silica Product Coverage
- Particle Size: 2nm to 150+nm
- Particle Size Distribution: Narrow, Medium, Broad distribution
- Stabilized Cation: Sodium Potassium, Ammonia, Acidic, Others
- Concentration: 7% to 50%
- pH: Acidic 2-6 Alkaline 8-10.5
- Package: Pail, Drum, IBC, Bulk
- Temperature condition: Not recoverable after freezing
- Classification: Standard Grade, High-Purity Grade, Customized Grade

Custom Silica Sol Product Development
In addition to our existing range of products, our experienced dedicated RD&E teams provide customized silica sol product development to deliver solutions that are tailored to specific business needs and processes. We design products covering a wide range of:
- Particle Size
- Particle Size Distribution
- Stabilized Cation
- Concentration
- pH
- Package Type
- Temperature Condition
- Classification
- Quality Equipment
Delivering Value for Our Customers
Quality Support
Process Engineering
Innovative Particle Design
Colloidal Silica Modifications

Innovation in Colloidal Silica Production for Sustainable Application
At Ecolab, sustainability is at the heart of everything we do. We help our customers accelerate performance and protect resources vital to life.
Our colloidal silica products are designed for quality and reliability. Superior performance help businesses improve sustainability in many applications. High quality colloidal silica can help:
- Make coatings more durable to last longer
- Reduce carbon emission by optimizing operational process
- Improve throughput and reduce scrap rates and waste in investment casting
Related Colloidal Silica Offerings
Get in Touch with Us
Give Us a Call
With unparalleled expertise and cutting-edge technology, we partner with customers to deliver world-class results and optimized operations. Contact us to learn how we can help you.
Ecolab Inc.
1 Ecolab Place
St. Paul, MN 55102
Ecolab Customer Service:
Phone: +1-800-352-5326
Nalco Water Customer Service
Phone: +1-800-288-0879
Give Us a Call
With unparalleled expertise and cutting-edge technology, we partner with customers to deliver world-class results and optimized operations. Contact us to learn how we can help you.
Ecolab Inc.
1 Ecolab Place
St. Paul, MN 55102
Ecolab Customer Service
Phone: +1-800-352-5326
Nalco Water Customer Service
Phone: +1-800-288-0879
Contact Us
Contact Us
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