MgO powder suit to working condition: 6W/cm squ surface loading (550-600 degree Centigrade).

GG-#5 is mainly used for stainless steel electric heating tubes, Aluminum tubes and iron tubes with water or oil as the heat transfer medium. To anneal at the temperature at 300oC for 12 minutes it can keep good insulation function while weld copper flanges.

Chemical Index :(%) Mgo:97  CaO 1.0     Fe2O3 0.45      Al2O3 0.2     SiO2  1.5

Physical Index :    Flow rate: ≤195s/100g       tape density: 2.28±0.04 g/cm3

Electrical property:   Normal condition:  Insulation Resistance: ≥1000MΩ

                                                          Puncture Voltage:     ≥  2000 V

                              Working conidition : surface loading:  6W/cm2

                                                            Leakage current: ≤ 0.3MA

                                                            Insulation Resistance: ≥ 10 MΩ

                                                            Puncture Votage:    ≥1800V

                              Moisture Condition   Insulation Resisitance ≥1000MΩ

                                                            Puncture Votage:   ≥ 2000V