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Gypsum Powder Plaster of Paris

Description And Applicaions


Gypsum powder “Plaster Of Paris” is a formulated binder plaster (B2 class) used in buildings to produce decorative gypsum cornices and ceiling decorations
Plaster of Paris is a versatile construction material used for everything from drywall repair to creating a fake ceiling Decoration, plastering, Sculpture, False Ceiling, gypsum board, for producing casting moulds, 3D printing, and others

Advantages Of Gypsum Powder

1. Ease of Application (Workability): Gypsum can be directly applied over brick/block work without separate finishing. It is also very easy to apply and level gypsum plaster.
No Shrinkage Cracks: Gypsum reaction produces less heat as compared to cement reaction with water. So there are fewer Shrinkage cracks in gypsum plaster as compared to traditional cement plaster.
2. Quick Setting Time: Gypsum sets quickly (i.e., within 25-30 mins). So painting could be started 72 hours after application of gypsum plaster. Plaster has to be dried up before painting.
3. No curing time required: Unlike Traditional Cement Plaster, Gypsum plaster doesn’t need any curing saving water and time dring construction.
4. High Productivity: Reduces time considerably when compared to conventional cement plaster.
5. High Performance: Excellent high strength after drying, Durable and Light weight (Reduces dead load on structure).
6. Smooth Finish: Perfectly lined, levelled, smooth walls and perfect right angled corners.
7. Fire resistant: Gypsum plaster is highly resistant to fire.
8. Low thermal conductivity: Gypsum has low thermal conductivity. This saves electrical cost for heating and cooling rooms in a building.
9. Decorative application: It can be easily applied to decorative purposes also and can be mould into different shapes

Chemical Analysis

CaSO4.1/2H2O                                                     97 %
CaO                                                                            38.68%
SO3                                                                            54.90%
MgO                                                                          0.18%
Fe2O3                                                                      0.037%
SiO2                                                                          0.25%
Al2O3                                                                       0.14%
L.O.I                                                                           4.3%
MOISTURE AT 250 0c                                    0.80 %

Physical Characteristics

Color degree                                                       > 95%
Powder size                                                         175 mesh
Apparent bulk density (g/CM2)              950
Reaction to fire                                                 Resist 1000 Dec for 2 hours
Thermal conductivity                                  0.316 W/(M.K)

Setting Characteristics

Initial Setting Time (Minutes)                   4-6
Final Setting Time (Minutes)                     8-10
Linearl Expansion %                                       0.2

Mechanical Characteristics

Flexural Strength (Mpa)                           3.2
Dry Compressive Strength (Mpa)      12-15
Brinell Hardness (Mpa)                            18