RAW KAOLIN

RTC-RC:% Particles< 2 μm: ≥45.0  pH:4~6        SiO₂  68   Al₂O₃ ≥22.0    Fe₂O₃  ≤1.2   TiO₂ ≤0.4    Brightness after firing: 55-75 Moisture: 30/15        Shrink ratio: 4.5±1

Ignition lost: 7.5      Water Absorption: 10      

RTC-90A: % Particles< 2 μm: 325mesh(Cake)   pH: 4~6   SiO₂ 45          Al₂O₃ 37.5    Fe₂O₃0.28    TiO₂ 0.04   Brightness after firing:91      Moisture:≤20   Shrink ratio:4.5±1

Ignition lost:7.5        Water Absorption:10

RTC-90B : % Particles< 2 μm: Cake        pH:4~6   SiO₂ 45.33  Al₂O₃ 38     Fe₂O₃ 0.18     TiO₂ 0.12    Brightness after firing:92   Moisture:25                                 Shrink ratio:4.5±1