Purasil R150 fumed silica is a medium surface area fumed silica which has been surface modified with polydimethylsiloxane (PDMS). This treatment replaces some of the hydroxyls on the surface of the silica, resulting in increased hydrophobicity and very different performance than untreated silica. For a complete list of application uses and suggested products, please refer to the product selection guide.
Purasil R-150 is used for rheology control in a wide variety of adhesives, composite and coatings applications. This product provides the following benefits:
Sag resistance or high film build
Anti-settling of pigments and fillers
Stable rheological performance over time