Cabot CAB-O-SIL Untreated Fumed Silica

SKU: M-5

The CAB-O-SIL® Untreated Fumed Silica – M-5 is a high-purity, synthetic amorphous silicon dioxide produced via flame pyrolysis.

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For group orders or questions, contact us at sales@raeproducts.net or 708-396-1984.

Additional Information

This process yields a light, fluffy white powder with extremely small particle size, high surface area, and a unique three-dimensional chain-like structure. These properties make it an effective additive for enhancing rheology control, reinforcement, and free-flow characteristics in various formulations. Enhance your traffic marking project with high-performance, long-lasting Traffic Marking Paints formulated for bold visibility and professional-grade durability.

Safety Data Sheet	📘CAB-O-SIL M-5 – Safety Data Sheet

Achieve crisp, long-lasting lines with dependable performance using professional-grade
line striping equipment designed for high-volume pavement marking jobs.

Prefer Thermoplastic Markings instead? Check out our category for different solutions. Also consider exploring our selection of Paint additives and aggregates to incorporate more traction, high-friction, visibility, and more.

Product Features

High Purity
✔ Produced through flame pyrolysis, resulting in a product with minimal impurities.

Small Particle Size
✔ Primary particles range from 5–50 nm, contributing to a high surface area of 50–600 m²/g.

Versatile Compatibility
✔ Serves as a thickening agent, anti-settling agent, and free-flow enhancer.

Broad Compatibility
✔ Suitable for use in adhesives, sealants, coatings, composites, pharmaceuticals, cosmetics, and food products.

Frequently Asked Questions
Q: What is Cabot CAB-O-SIL Untreated Fumed Silica used for? A: It’s a versatile thixotropic agent used to control viscosity, prevent sagging, and improve suspension in coatings, adhesives, sealants, and other formulations.
Q: What types of systems is it compatible with? A: CAB-O-SIL is compatible with both solvent-based and water-based systems, as well as epoxy, polyester, and silicone formulations. Always test in small batches first.
Q: How is fumed silica added to a formulation? A: Gradually mix it into liquids under high shear dispersion. Ensure even distribution to maximize performance and prevent clumping or dusting.
Q: Can it improve product stability? A: Yes. CAB-O-SIL enhances stability by reducing settling and separating in suspensions, making it ideal for long-term storage and use in high-performance applications.
Q: How should I store CAB-O-SIL fumed silica? A: Store in a cool, dry place in its original container. Keep tightly sealed to prevent moisture absorption and maintain flow properties.