Stock paste percent8 kg. powder- 92 kg. water, Moisture 10% max, Ash content 20% max, Viscosity of 8% paste 60,000 – 65,000 cps (Spindle No. 6, 20 RPM by Brooke field Viscometer Model RVT at 25°c), Hydration Time 3 - 4 hours after 30 to 40 minutes at high speed stirring, Stability 5 - 7 days under normal conditions.