Watani Gypsum plaster is regular gypsum casting powder. It is mainly used in ornaments and decorations for interiors uses.
Technical specification
Specification Unit Value
Setting Parameters
Vicat Ring Diameter Cm 20 - 24
Initial Setting Time Min 5 - 8
Final Setting Time Min 12 - 17
Water to plaster Ratio
P/W P:W 1.5:1
W/P % 67
Physical and chemical properties
Purity % ≥95
Residue on 90 µm sieve % ≤20
Fineness % ≥ 80
Whiteness % ≥90
Surface Water % ≤ 0.04
Crystal Water % 5.39-6.39
Bulk Density gm/cm3 ≤ 0.8
Mechanical Properties
Compressive Strength N/mm2 12.5
Bending Strength N/mm2 ≥12.5
Hardness N/mm2 ≥2.5
Packaging & Shelf Life
Shelf Life month 3
Packaging Available kg 25 , 40& Bulk
Reference standards
DIN 1168 & ASTM C - 59