SiSiB® PC8511 Diphenylmethylmethoxysilane is a high-performance organosilicon combining phenylsilane's thermal stability with methoxy group reactivity. It's used as a capping agent, crosslinker, and surface additive in silicone resins, oils, rubbers, and composites to enhance durability and heat resistance.
| Cas Number | 18407-48-2 |
Formula | C14H16OSi |
Molecular Weight | 228.36 |
Boiling Point | 275°C |
Color and Appearance | Colorless transparent liquid |
Density 25/25°C | 1.06 |
Refractive Index 20°C | 1.5315 |
Min. Purity | 99.0% |
SiSiB® PC8511 is a key organosilicon compound primarily utilized as an end-capping agent in silicone polymer synthesis, where it regulates molecular weight and improves the stability and chemical properties of the final polymers.
It is essential in the production of phenyl-based silicone resins, contributing to enhanced thermal stability, mechanical strength, and chemical resistance. These resins are widely applied in high-performance coatings, adhesives, and electrical insulation systems.
SiSiB® PC8511 is also used in the formulation of phenyl silicone oils, which exhibit excellent thermal and oxidative stability, low volatility, and are well-suited for high-temperature lubricants, hydraulic fluids, and dielectric applications.
Furthermore, it plays a critical role in the production of silicone rubbers, where the phenyl functionality improves aging resistance and tear strength, ensuring long-term elasticity under extreme temperature conditions.
SiSiB® PC8511 is available in a 200Kg steel drum.
This document does not contain the product safety information required for safe use. Before handling, please refer to the product and safety data sheets, as well as container labels, for information on safe usage, physical hazards, and health risks. Safety Data Sheet is available on the website, from the distributor, or by contacting SiSiB customer service.