AEROSIL R 972: High-Performance Fumed Silica for Rheology Control in Advanced Coatings
Nov 13, 2025|
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Hello, I'm Mina, the team leader of the Additives Expert Library at Evergreen Chemicals and the brand director of Henkel. I specialize in the development and application of chemical additives across diverse industrial scenarios. With a strong background in formulation science and market-driven innovation, I’ve spent years helping clients enhance product performance, stability, and functionality. Whether it’s optimizing additives for coatings, adhesives, or advanced composites, I collaborate closely with partners to deliver tailored solutions that meet both technical and commercial goals. My focus is always on driving value through expertise, reliability, and a deep understanding of evolving industry needs.
Mina
Additives ExpertWhat is AEROSIL R 972?
AEROSIL R 972 is a dimethyldichlorosilane-treated (DDS) fumed silica, delivering a hydrophobic (or moderately hydrophobic) character while retaining excellent thickening and rheology‐control functions.
Key technical data include:
- Specific surface area (BET): 90-130 m²/g
- SiO₂ content > 99.8%
- Typical addition level: 1.0-2.0% of total formulation
These characteristics make R 972 a standard recommendation for anti-sagging, anti-settling and corrosion-resistant systems in both solvent and waterborne coatings.
Why it Matters for Formulators
| Feature | Explain |
|---|---|
| Thixotropy & sag control | R 972 builds a reinforcing silica network—even at low loadings—that helps keep pigments and fillers suspended and prevents sag on vertical surfaces. |
| Broad application profile | Compatible with 1-pack and 2-pack coatings, powder, solvent-borne and even radiation-curing systems. |
| Improved surface quality | The treated surface ensures good dispersibility, low dusting and minimal effect on clarity—critical for premium systems. |
| Trusted across industries | From coil and OEM automotive coatings to high-performance industrial finishes and composite encapsulants, R 972 is a go-to additive for rheology stabilization. |
Evergreen Chemicals: Your R 972 Partner in China
At Evergreen Chemicals, we believe high-quality additives are only half the story—technical service is the other half. As a distributor specialising in unsaturated polyester resins, epoxy, vinyl resins and specialty additives, we bring:
Authorised access to AEROSIL R 972 and full documentation including TDS & SDS
Formulation advice: from choosing the correct dosage to mixing order and dispersion strategy
Reliable supply chain and customer-first support in China and beyond
When you choose R 972 through Evergreen, you get both material quality and expert guidance.
Formulation Tips from Mina
Pre-dispersion is often beneficial: add R 972 slowly under moderate shear to avoid clumping.
For solvent-borne systems, adjust loading within 1.0-2.0% but always verify in the actual kit.
Monitor compatibility: while R 972 is broadly applicable, always test in your exact system (resin, solvent, pigments, fillers).
Storage & handling matter: the product has a shelf life of 24 months when stored in unopened packaging under dry conditions.
