In-depth Analysis of Evonik SIPERNAT® 26 Silica Product

2025.04.07

In-depth Analysis of Evonik SIPERNAT® 26 Silica Product

1. Product Overview

SIPERNAT® 26 is a specialty precipitated silica developed by Evonik. As a functional additive, it has dual attributes of a conditioning agent and a carrier. Through precision engineering design, it can optimize the flow performance of powder materials, enhance storage stability, and impart rheological adjustment and matting effects to liquid coatings. It is an important functional additive in fields such as coatings and powder materials.

2. Core Technical Parameters

Indicator Parameter Explanation 

Appearance White solid Pure and free of impurities, suitable for various light-colored systems 

Delivery Form Free-flowing powder Easy to measure and disperse, improving production efficiency 

Oil Absorption 215 ml/100g High oil absorption performance, suitable for adjusting system rheology 

Loss on Drying 7% Stable moisture control, ensuring storage reliability 

Median Particle Size (d₅₀) 7 μm Fine particles ensure uniform dispersion 

pH Value (5% Aqueous Solution) 7 Neutral environment, strong compatibility 

Specific Surface Area (BET) 150 - 200 m²/g High specific surface area, enhancing adsorption and matting functions 

3. Core Advantages and Functions

- Cost-effective Matting Agent: In liquid coatings, it effectively reduces the gloss of the coating through surface roughening. Compared with similar products, it has more prominent cost-effectiveness.

- Low Shear Thickening Property: Under low shear force conditions, it can adjust the viscosity of the system, prevent pigment sedimentation, and improve the storage stability of coatings.

- Anti-caking and Free Flow for Powders: As an anti-caking agent for powder materials (such as powder coatings and printing inks), it improves flow performance and avoids caking and equipment blockage during production.

4. Global Typical Application Fields

- Coating Industry:

- Wood Coatings: Imparts a soft matte effect to the coating while enhancing the rheological stability of the paint film.

- Powder Coatings: Optimizes powder fluidity, improves spraying uniformity, and reduces production losses.

- Decorative Coatings and Industrial Coatings: Balances matting and rheological adjustment to meet the texture and performance requirements of different scenarios.

- Printing and Packaging: Used in printing inks and packaging powder materials to ensure no caking during storage and transportation and guarantee smooth usage.

- Special Materials: As a functional carrier, it adsorbs active ingredients and is applied in fields such as catalysts and adsorbents.

5. Storage and Safety Guidelines

- Storage Conditions: With the original packaging unopened, the shelf life is 24 months from the production date. It is recommended to store it in a sealed container in a dry environment, avoiding contact with volatile substances to prevent impact on adsorption performance.

- Safe Operation: Although it is an inert material, avoid dust inhalation during operation. It is recommended to wear protective masks and gloves and follow the specifications in the Safety Data Sheet (SDS).

6. Global Compliance and Market Layout

SIPERNAT® 26 has completed multiple international regulatory registrations, including REACH in Europe, TSCA in the United States, and IECSC in China, meeting the use standards for industrial chemicals in different regions worldwide. With its stable performance and multifunctional characteristics, it is widely used in the coating and printing industrial chains in regions such as Europe, the United States, and the Asia-Pacific, becoming a common choice for multinational enterprises to optimize production processes.

7. Summary

Evonik SIPERNAT® 26 demonstrates outstanding value in scenarios such as matting, rheological adjustment, and anti-caking with its precise performance design. Combined with global compliance layout and stable supply capacity, it continuously provides efficient solutions for industrial production. It is a benchmark product with both functionality and economy in the fields of coatings and powder materials.

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