Evonik Fumed Silica Solutions
Fumed Silica for Rheology Control, Anti-Sag & Thickening
Improve viscosity, prevent settling, and enhance thixotropy for coatings, adhesives, sealants, and resin systems. Request technical documents or talk to a specialist for your formulation.
*For industrial/professional use only. Final parameters, availability, and lead time are subject to order confirmation.
Key Benefits
Improve flow control without sacrificing stability
Fumed silica is widely used as a highly efficient rheology modifier. It helps you tune viscosity, enhance thixotropy, and reduce sedimentation—especially in systems where fillers and pigments tend to settle.
Thixotropy & anti-sag
Better vertical hold, cleaner edges, reduced dripping in coatings & pastes.
Anti-settling stability
Minimize pigment/filler sedimentation and keep viscosity consistent over storage.
Low dosage efficiency
High surface area enables effective thickening at relatively low addition levels.
Applications
Where fumed silica delivers the most value
Choose the module closest to your system. We can recommend grades and dosage ranges for your formulation target.
Coatings & inks
Anti-sag, edge coverage, viscosity control, improved storage stability.
Adhesives & sealants
Better non-slump, consistent bead profile, controlled flow under shear.
Resins & composites
Prevents filler settling, tunes thixotropy for hand lay-up, infusion, putties.
Product Portfolio
Evonik Products Available
Listed below are common portfolio options and use directions for formulation reference.
Fumed Silica – AEROSIL® Series
Key Functions
Rheology control, thixotropy, anti-settling, reinforcement
Key Functions
Moisture resistance, flow improvement, anti-caking, dispersion stability
Precipitated Silica
Applications
Matting agent, carrier, rheology control
Specialty Polymers & Curing Agents
Cycloaliphatic diamine for epoxy curing
Polyester resin for coatings, inks, and adhesive systems
Confidence
Lower qualification risk with clear support
Purchasing for formulations is risk-sensitive. We focus on helping you validate faster with documents, guidance, and consistent supply coordination.
TDS / SDS / COA request workflow with clear turnaround expectations and version control for exports.
Guidance on dispersion sequence, viscosity target, and grade selection based on your system & process.
Lead time and packaging options coordinated to support trials, scale-up, and repeat supply planning.
FAQ
Common questions from formulators
Short, practical answers for faster evaluation.
Hydrophilic or hydrophobic—how do I choose?
It depends on your system polarity, moisture sensitivity, and required thixotropy. Hydrophobic options often improve moisture resistance and compatibility in certain low-polarity systems, while hydrophilic options can be efficient in many polar systems.
Why is dispersion so important?
Fumed silica forms a 3D network. Mixing intensity, addition sequence, and wetting determine how well that network forms—directly affecting yield point, sag resistance, and viscosity recovery.
Can it help prevent pigment settling?
Yes. It’s commonly used to increase low-shear viscosity and build a yield point that holds pigments/fillers in suspension, improving storage stability.
What information should I send for a recommendation?
System type (solvent/water/100% solids), resin chemistry, target viscosity/sag, fillers/pigments, and your mixing equipment/process.
Get Documents & Recommendation
Request TDS / SDS / COA or grade selection support
Tell us your application and target performance. We’ll reply with a recommended approach and the document package for your evaluation.
Please contact us via Email or WhatsApp with the template below. By contacting us, you confirm this request is for industrial/professional use only.
Fast Contact
Click a channel below. We’ve pre-filled a message template to speed up your request.
Tip: If you need a fast recommendation, include your system type (solvent/waterborne/100% solids), resin chemistry, target viscosity/anti-sag, fillers/pigments, and mixing method.
Fumed Silica for Rheology Control, Anti-Sag & Thickening
Improve viscosity, prevent settling, and enhance thixotropy for coatings, adhesives, sealants, and resin systems. Request technical documents or talk to a specialist for your formulation.
*For industrial/professional use only. Final parameters, availability, and lead time are subject to order confirmation.
Key Benefits
Improve flow control without sacrificing stability
Fumed silica is widely used as a highly efficient rheology modifier. It helps you tune viscosity, enhance thixotropy, and reduce sedimentation—especially in systems where fillers and pigments tend to settle.
Thixotropy & anti-sag
Better vertical hold, cleaner edges, reduced dripping in coatings & pastes.
Anti-settling stability
Minimize pigment/filler sedimentation and keep viscosity consistent over storage.
Low dosage efficiency
High surface area enables effective thickening at relatively low addition levels.
Applications
Where fumed silica delivers the most value
Choose the module closest to your system. We can recommend grades and dosage ranges for your formulation target.
Coatings & inks
Anti-sag, edge coverage, viscosity control, improved storage stability.
Adhesives & sealants
Better non-slump, consistent bead profile, controlled flow under shear.
Resins & composites
Prevents filler settling, tunes thixotropy for hand lay-up, infusion, putties.
Product Portfolio
Evonik Products Available
Listed below are common portfolio options and use directions for formulation reference.
Fumed Silica – AEROSIL® Series
Key Functions
Rheology control, thixotropy, anti-settling, reinforcement
Key Functions
Moisture resistance, flow improvement, anti-caking, dispersion stability
Precipitated Silica
Applications
Matting agent, carrier, rheology control
Specialty Polymers & Curing Agents
Cycloaliphatic diamine for epoxy curing
Polyester resin for coatings, inks, and adhesive systems
Confidence
Lower qualification risk with clear support
Purchasing for formulations is risk-sensitive. We focus on helping you validate faster with documents, guidance, and consistent supply coordination.
TDS / SDS / COA request workflow with clear turnaround expectations and version control for exports.
Guidance on dispersion sequence, viscosity target, and grade selection based on your system & process.
Lead time and packaging options coordinated to support trials, scale-up, and repeat supply planning.
FAQ
Common questions from formulators
Short, practical answers for faster evaluation.
Hydrophilic or hydrophobic—how do I choose?
It depends on your system polarity, moisture sensitivity, and required thixotropy. Hydrophobic options often improve moisture resistance and compatibility in certain low-polarity systems, while hydrophilic options can be efficient in many polar systems.
Why is dispersion so important?
Fumed silica forms a 3D network. Mixing intensity, addition sequence, and wetting determine how well that network forms—directly affecting yield point, sag resistance, and viscosity recovery.
Can it help prevent pigment settling?
Yes. It’s commonly used to increase low-shear viscosity and build a yield point that holds pigments/fillers in suspension, improving storage stability.
What information should I send for a recommendation?
System type (solvent/water/100% solids), resin chemistry, target viscosity/sag, fillers/pigments, and your mixing equipment/process.
Get Documents & Recommendation
Request TDS / SDS / COA or grade selection support
Tell us your application and target performance. We’ll reply with a recommended approach and the document package for your evaluation.
Please contact us via Email or WhatsApp with the template below. By contacting us, you confirm this request is for industrial/professional use only.
Fast Contact
Click a channel below. We’ve pre-filled a message template to speed up your request.
Tip: If you need a fast recommendation, include your system type (solvent/waterborne/100% solids), resin chemistry, target viscosity/anti-sag, fillers/pigments, and mixing method.
