It needs to be decided according to the type of pp material
1. The pp pure polypropylene of the petrochemical plant has a heat-resistant temperature of 110 degrees, but the actual temperature is only 100 degrees.
2. The heat-resistant temperature of modified pp material is usually 130 to 142 degrees, and the long-term thermal stability of modified pp at high temperature is about 120 to 135 degrees.
3. Whether it is glass fiber pp material or mineral reinforced pp material, the temperature resistance is generally 158-163 degrees.