The high temperature resistance of dimethyl silicone oil varies depending on specific circumstances and generally has the following characteristics:

1. Normal operating temperature range: It can usually be used for a long time at -50 ℃~+180 ℃. This is a relatively stable working temperature range, within which dimethyl silicone oil can maintain good physical and chemical properties and play its corresponding roles, such as lubrication, defoaming, insulation, etc.

2. High temperature resistance under special conditions:

Isolation from air or inert gas environment: In isolation from air or inert gas, the high temperature resistance of dimethyl silicone oil will be further improved, and the medium and long-term use temperature can reach over 200 ℃.

• High temperature resistance in a short time: it can withstand higher temperatures in a short time, generally reaching about 300 ℃. However, if it is used in a high temperature environment of 300 ℃ for a long time, dimethyl silicone oil will gradually be oxidized, and oxygen will be oxidized to form cross-linking, which will increase the viscosity, and then gel will be formed.