The three methoxy groups of BRB Silanil® 299 undergo hydrolysis to form silanol (Si–OH), which subsequently condenses into siloxane structures (Si–O–Si). The phenyl group provides stability, hydrophobicity, and heat resistance.

BRB Silanil® 299 is a versatile silane combining hydrophobic phenyl groups with reactive methoxy functionalities. It serves as a key precursor in silicone chemistry, adhesion promotion, and advanced material synthesis, offering benefits in coatings, electronics, and nanotechnology.

Other applications for BRB Silanil® 299 include:

Silane Coupling agent in Sealant & Adhesives and Coatings
Improves adhesion between organic polymers and mineral substrates such as glass, metals, and fillers. Enhances thermal and UV resistance in coating formulations, waterproofing systems, and construction materials.

Silicone Resins & Oils
Used as a monomer or co-monomer in the production of phenyl silicone fluids and rubbers. Enables the development of high-performance products for heat transfer, insulation, and weather-resistant coatings.

Silicone Resins & Oils
Applied in sol-gel processes for hydrophobic surfaces or drug delivery systems. Also used in LSPR sensors via molecularly imprinted gels.

Electronics & MEMS
Used in protective coatings for electronic components; moisture- and heat-resistant surface modification. Phenyl groups improve performance in high-end coatings.

High-Refractive-Index Materials
Due to its high refractive index (nD20 ≈ 1.468–1.475), BRB Silanil® 299 is very suitable for formulating materials for optic applications

The versatility of the BRB Silanil® 299 makes it a very interesting product for a wide range of applications.

For more information, please contact your local sales representative via our website.