description: Main Properties: 1.Density:3.0-3.15g/cm 3 2.Resistivity:200-1400μ Ω -cm 3.3.Evaporation rate:0.4-0.5g/win.cm 2 4.Max temperature in using:1750 °C 5.Longevity: 12-16 hours(warm-up time add evaporation time);It is relative to coating sorts.