In the field of high-temperature coatings, both phenyl silicone oil and silicone-modified acrylic emulsion have excellent weather resistance, but there are differences in the mechanism of action and application scenarios. Phenyl silicone oil improves high temperature resistance and radiation resistance through the phenyl group in the molecular structure, while silicone-modified acrylic emulsion enhances stability to environmental factors such as ultraviolet rays and moisture through chemical bonding. The following is a specific analysis:

Weather resistance of phenyl silicone oil
High temperature resistance: Due to the introduction of phenyl, phenyl silicone oil has higher high temperature resistance than dimethyl silicone oil. In high temperature environments, phenyl silicone oil can maintain good stability and is not easy to decompose or deteriorate, thereby extending the service life of the coating.
Radiation resistance: Phenyl silicone oil also has good radiation resistance, can resist the erosion of ultraviolet rays and other radiation, and maintain the color and gloss of the coating stable.
Application scenarios: Phenyl silicone oil is often used in occasions that need to withstand high temperature and radiation, such as high-temperature coatings in aerospace, automobile manufacturing and other fields.
Weather resistance of silicone-modified acrylic emulsion
UV resistance: silicone-modified acrylic emulsion enhances the UV resistance of the coating by introducing silicone units. The silicon-oxygen bond structure can effectively resist long-term exposure to ultraviolet rays and reduce the aging and yellowing of the coating.
Water resistance and stain resistance: The introduction of silicone also reduces the surface tension of the coating and improves the water resistance and stain resistance of the coating. This allows the coating to remain clean and beautiful even in harsh climatic conditions.
Flexibility and hardness: silicone-modified acrylic emulsion can cross-link with the acrylic resin system to form a coating that has both flexibility and hardness. This coating can not only adapt to the slight deformation of the building, but also maintain good adhesion on different substrates.
Application scenarios: silicone-modified acrylic emulsion is widely used in outdoor architectural coatings, which can significantly improve the weather resistance and service life of the coating.
Comparison and recommendation
Weather resistance comparison: phenyl silicone oil and silicone-modified acrylic emulsion each have their own advantages in weather resistance. Phenyl silicone oil focuses more on high temperature and radiation resistance, while silicone-modified acrylic emulsion focuses more on UV resistance, water resistance and stain resistance.
Recommended choice: When choosing high-temperature coatings, you should decide which material to use based on the specific application scenario and needs. If the coating needs to withstand extremely high temperatures and radiation, then phenyl silicone oil may be a better choice. If the coating is mainly used for outdoor construction and needs to resist the erosion of UV rays, moisture and stains, then silicone-modified acrylic emulsion is more suitable.