Rigid Foam Silicone Oil CGY-5 is a specialized silicone-based additive designed for use in rigid polyurethane foam systems. It functions primarily as a foam stabilizer and surfactant, helping to control cell structure, improve foam quality, and enhance processing efficiency. This product is suitable for a wide range of rigid foam applications, including insulation panels, spray foam, refrigerator and freezer insulation, pipe insulation, and various construction and industrial insulating materials.

CGY-5 exhibits excellent compatibility with most common rigid polyurethane systems, including both HCFC- and HFC-blown formulations, as well as water-blown and blended blowing-agent systems. By reducing surface tension in the reacting mixture, it promotes uniform nucleation and growth of cells, resulting in a fine, regular cell structure. This contributes to improved thermal insulation performance, better dimensional stability, and optimized mechanical properties of the finished foam.

The silicone oil provides strong foam stabilization during the critical stages of cream, rise, and gel. It helps prevent issues such as cell coalescence, collapse, shrinkage, and surface defects. As a result, foams produced with CGY-5 typically show smoother surfaces, more consistent density distribution, and reduced incidence of voids or large cells. In continuous production lines, this leads to more reliable process control and less scrap.

CGY-5 is generally supplied as a clear to slightly hazy liquid with moderate viscosity. It is easy to handle and can be incorporated directly into the polyol component. Typical dosage levels fall within a low percentage range based on the total polyol formulation, though the exact amount depends on the foam system, blowing agent type, and desired cell structure. It is recommended to determine the optimal dosage through laboratory trials and pilot production, adjusting in small increments to balance flow, stability, and thermal performance.

In terms of performance benefits, CGY-5 helps to lower foam thermal conductivity by promoting smaller, more uniform closed cells. This is especially important for insulation materials where energy efficiency and long-term thermal stability are critical. The product also supports good adhesion of the foam to various substrates such as metal, plastic, and composite facings when the overall formulation is properly balanced.

Storage and handling conditions should protect the silicone oil from moisture and contamination. Containers are best kept tightly sealed in a cool, dry environment away from direct sunlight. Under proper storage conditions, CGY-5 maintains its performance for an extended period, though it is advisable to check its appearance and key properties periodically in long-term storage.

Overall, Rigid Foam Silicone Oil CGY-5 is a versatile and efficient surfactant for rigid polyurethane foams, offering reliable foam stabilization, improved cell structure, and enhanced insulation performance across a broad range of industrial and construction applications.