Polyimide Film is a good HN grade insulating material. It is widely used for insulation purposes in electrical appliances, which are used in a special environment. To use the polyimide film means reducing the volume and weight of the electrical appliances while retaining the same output or increase the capacity without increasing in frame size. It can also prolong the service life of electrical appliances and increase their reliability. Its long-term working temperature is under 200 °C.

The following properties of Polyimide Film ensure its good performance under extreme temperature or other conditions.

• Has a Good property of insulation and mechanism.
• Good temperature-resistant property and wide performance temperatures range. It can be used under temperature from –60 °C to +250 °C for a long period and –269 °C to +400 °C for a short period without changing its electrical and mechanical properties.
• Good chemical stability. It resists most organic solvents.
• Excellent flame retardant property.
• Good radian-resistant property.
• It can be combined with many other materials. When combined with a fluorine resin, its characters of wet and corrosion resistance are greatly improved.