AEROSIL 200 is a hydrophilic fumed silica with a specific surface area of approximately 200 m²/g, positioned by Evonik as a standard, universally applicable recommendation for coating formulators. As one of the recommended international brand products in our auxiliary agent range, this fumed silica is supplied with supply chain resource support for formulators sourcing a dependable, general-purpose rheology additive for waterborne, solventborne, and 1-pack or 2-pack coating systems.
AEROSIL 200 Technical Data
According to the manufacturer’s published technical data sheet, AEROSIL 200 has the following key parameters:
| Parameter | Value | Test Basis |
|---|---|---|
| Specific Surface Area (BET) | 175 – 225 m²/g | Evonik TDS |
| Loss on Drying | <1.5% | Evonik TDS |
| pH-value | 3.7 – 4.5 | Evonik TDS |
| SiO2 Content | >99.8% | Evonik TDS |
| Tamped Density | Approx. 50 g/l | Evonik TDS |
| Recommended Addition Level | 1.0 – 2.0% (as supplied, on total formulation) | Evonik TDS |
| Shelf Life | 24 months from date of manufacture (original unopened packaging) | Evonik TDS |
Formulators should always confirm dosage and mixing conditions against the current technical data sheet for their specific coating system before finalizing a formulation using AEROSIL 200.
Key Benefits and Rheological Effects of AEROSIL 200
- Standard recommendation across a wide range of coating systems
- Universally applicable, good dispersibility with standard mixing equipment
- Anti-settling effect, helping pigments and fillers stay suspended in liquid coatings
- Anti-sagging effect, supporting film build on vertical surfaces
- Corrosion resistance support in protective coating formulations
Good dispersibility allows the fumed silica particle network in it to form evenly, supporting consistent rheology control without visible specks or gloss defects from poorly dispersed agglomerates.
Typical Applications and Suitability
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Per the Evonik technical data sheet, this fumed silica is suitable for waterborne and solventborne systems, partly suitable for radiation-curing formulations, and suitable for both 1-pack and 2-pack coatings. Typical applications include:
- General industrial coatings
- Wood coatings
- Powder coatings
- Plastic coatings
These applications span our Paints & Coatings industry category, where consistent rheology control and good dispersibility support application properties across a wide range of coating chemistries and substrates.
Sourcing AEROSIL 200 Through Thousands Chemicals
Thousands Chemicals connects coating formulators with AEROSIL 200 and related auxiliary agent products through our digital B2B marketplace. Formulators comparing AEROSIL grades may also want to review AEROSIL 200 V, a related grade from the same product line. Our team can help coordinate technical data sheets, SDS documentation, and bulk pricing based on target volume and delivery location.
Frequently Asked Questions About AEROSIL 200
What is the BET surface area of AEROSIL 200?
According to the Evonik technical data sheet, it has a specific surface area (BET) of 175 – 225 m²/g.
What is the recommended addition level?
Evonik recommends an addition level of 1.0 – 2.0% as supplied, calculated on the total formulation, though formulators should confirm dosage against their specific system.
How does good dispersibility affect coating performance?
Good dispersibility allows the particle network to form evenly with standard mixing equipment, supporting consistent rheology control without visible specks or gloss defects from poorly dispersed agglomerates.
Which coating systems is it suitable for?
Per the manufacturer’s data sheet, this fumed silica is suitable for waterborne, solventborne, 1-pack, and 2-pack coatings, and partly suitable for radiation-curing formulations.
Can you provide technical documentation and bulk pricing?
Yes, technical data sheets and SDS documentation are available on request, and our team can provide bulk pricing and lead times based on your target volume and delivery location.
Get a Quote for AEROSIL 200: contact our team for a technical data sheet, SDS, or bulk pricing. We support bulk supply and shipping for coating formulators sourcing standard fumed silica rheology additives.
