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we want to buy 200 ton of Gypsum in big bags of 1, 000 kgs per bagsProduct specificationColorWhite (minimum 90%)FinenessRemain on 0.15 mm sieve (2%-5%)Mixing water approx0.70 - 0.75 L / KgPHneutralInitial setting time7 - 11 min.Working timeStart from mixing till final settingFinal Setting time25 - 30 min. (final)Resistance to Compression5 -8 N/mm2 (after 7 days)Resistance to flexion3 - 4 N/mm2 (after 7 days)Surface hardness70 Shore CCalcium Sulfate Hemi hydrate88% - 94 % by weightSodium Chloride0.15 - 0.17%Crystalline water content4.5 - 6 % by weightStorageCovered and dry place for a period of no longer than 3 months.Impurities 5% by weigh gypsum mineral and chemicals
