The low temperature resistance of phenyl silicone oil varies due to its different phenyl content. The following is a detailed analysis of the low temperature resistance of phenyl silicone oil:

1. The relationship between phenyl content and low temperature resistance
Low phenyl silicone oil: Containing 5%~10% phenyl, this silicone oil can still maintain good fluidity at extremely low temperatures. Even at -70℃, low phenyl silicone oil can still flow, showing its excellent low temperature resistance.
Medium phenyl silicone oil: The phenyl content is about 25%. Although its low temperature resistance is lower than that of low phenyl silicone oil, it is still suitable for some occasions that require low temperature resistance.
High phenyl silicone oil: The phenyl content is about 45%, and its low temperature resistance is relatively weak. However, high phenyl silicone oil has excellent performance in thermal stability and radiation resistance, and is suitable for applications in high temperature environments.

2. Characteristics and applications of low temperature resistant silicone oil
Low temperature resistant silicone oil (usually refers to modified phenyl silicone oil with high phenyl content) has excellent low temperature resistance and can show excellent performance in a wider operating temperature range (-120℃ to 280℃). This kind of silicone oil is widely used in insulation, lubrication, damping, shockproof and other occasions due to its appearance of colorless or light yellow transparent liquid, high and low temperature fluidity, oxidation resistance, lubricity, radiation resistance and stability to water.
Specifically, low temperature resistant silicone oil can maintain stable performance in the working temperature range of -110℃ to 250℃. It can not only be used as an anti-yellowing agent for high temperature vulcanized silicone rubber, a crosslinker and demolding agent for addition type silicone rubber, but also can be used for synthetic modified silicone oil, such as polyurethane foaming agent, coating leveling agent and fabric finishing agent.

3. Storage and transportation precautions
To ensure that the low temperature resistance of phenyl silicone oil is not affected during storage and transportation, the following points should be noted:
When storing, the container should be kept clean and dry, and placed in a ventilated and dry warehouse.
During transportation, it should be handled as non-dangerous goods to avoid high temperature and direct sunlight.
The shelf life of the product is 3 years, and it should be used within the shelf life to ensure its stable performance.

In summary, the low temperature resistance of phenyl silicone oil varies due to its different phenyl content. Low-phenyl silicone oil can still maintain good fluidity at extremely low temperatures and is suitable for applications that require high cold resistance; while high-phenyl silicone oil is more suitable for applications in high temperature environments. During storage and transportation, it is also necessary to pay attention to maintaining its stable performance.