High temperature label is a special polyimide film (PI), is made from ambivanade dimethyl acid (PMDA) and diamine dibenzene (DDE) in a strong polar solvent by agglomeration and flowing into a membrane and then by diamine.High temperature non-dry film label wide range of applications, long-term color-changing, stable performance, high temperature non-dry film label widely used in aviation, electronics, automotive and other industries.