Yamama 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 18 - 20
Initial Setting Time Min 4 - 6
Final Setting Time Min 10 - 12
Water to plaster Ratio
P/W P:W 1:1.5
W/P % 67
Physical and chemical properties
Purity % ≥88
Residue on 45 µm sieve % ≤16
Whiteness % ≥88
Surface Water % 0.0 : 0.5
Crystal Water % 6.2-5.7
Bulk Density gm/cm3 ≤0.77
Mechanical Properties
Compressive Strength N/mm2 12.5
Bending Strength N/mm2 2.5
Hardness N/mm2 10
Packaging & Shelf Life
Shelf Life month 3
Packaging Available kg 25 , 40 , Bulk