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| LP Filler #2 |
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USG Calciun Sulfate Fillers
Extenders
USG LP Filler #2, the dihydrate form of calcium sulfate (CaSO4-2H2O), is made, by fine grinding select gypsum containing about 17% water of crystaUization. Due to this water of crystallization, LP Filler #2 can provide fire retardancy in room temperature curable systems such as unsaturated polyester spray-up.
It is a finely divided, non-abrasive, non-toxic, easily dispersible powder. |
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Typical Physical Properties:
Median Particle Size - Microns: 35.0
Blaine Surface Area - cm 2/gm: 2700.0
Specific Gravity: 2.43
Mohs Hardness: 2-3
Typical Chemical Analysis: %:
CaSO4-2H2O: 82.29
CaSO4: 0.59
CaCO3-MgCO3: 12.23
CaCO3: 1.30
Aggregate: 3.59
Free Moisture: 0.10
Combined Moisture (water loss at 225C): 17.22
Particle Size Distribution:
Sieve Sizes: %:
Through 30 mesh (600 microns): 100.00
Through 50 mesh (300 microns): 99.95
Through 100 mesh (149 microns): 98.50
Through 200 mesh (71 microns): 75.60
Through 325 mesh (44 microns): 51.60
Median Particle Size (microns): 35.00
Sedimentation Data: %:
Smaller than 20 microns: 35.0
Smaller than 10 microns: 21.0
Smaller than 5 microns: 12.0
Smaller than 2 microns: 4.0 |
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