Alpha Gypsum is obtained by heating of gypsum stone under high pressure and Alpha Gypsum is chemically same with CaSO4.1 / 2H2O formula and beta gypsum but different from in the point of crystal structure. Structure of beta gypsum is needle-like and amorphous while crystal structure of Alpha Gypsum is geometric. It shows that Alpha Gypsum as compare to beta gypsum appears to be fluidized when mixed with much less water than beta gypsum and Alpha Gypsum offers high strength properties.
Alpha Gypsum is preferred in different industrial applications by virtue of high mechanical strength.
Application Areas:
Ceramic Molding Plaster
Dental Plaster
Screed Binder
Construction Chemicals
Orthopedic Plaster
Architectural and Decorative Adornments
| Physical Properties | |
| Water / plaster ratio (%) : | 38-42 |
| Hemihydrate content (%) : | >90 |
| Initial setting time (min.) : | 3-8 |
| Final setting time (min.): | 10-25 |
| Slump diameter (mm): | 160-200 |
| Crystal water (%): | 5,5-6,2 |
| Compressive strength (kg/cm2): | >400 |
| Bulk density (g/L): | 1100±100 |
| Degree of whiteness (*L) : | >95 |
| Dv(90) (micrometer) (Malvern particle Sizer) | 55-65 |
| Chemical Properties | |
| Chemical Name : | Calcium sulphate hemihydrate |
| CaSO4 ½ H2O (%): | Min 90.0 |
| SO3 (%): | Min 50.0 |
| CaO (%): | Min 34.0 |
| SiO2+R2O3 (%): | Max 0.8 |
| MgO (%): | Max 0.5 |
| CO2 (%): | Max 0,5 |
Alpha Gypsum is produced in different finess according to the customer’s request.
Packing: Bigbag, bagged and bulk
Shelf life (max): 6 months
Application Areas:
High strength formulated
Ceramic and porcelain production
Long mold life
Good permeability
Storage: Should be stored in a closed and dry condition. Gypsum based products are not recommended to be stored in outdoors and extremely humid conditions. Humid condition causes to changes in the physical properties of plaster.
| Physical Properties | |
| Water / plaster ratio (%) : | 38-42 |
| Hemihydrate content (%) : | >90 |
| Initial setting time (min.) : | 3-8 |
| Final setting time (min.): | 10-25 |
| Slump diameter (mm): | 160-200 |
| Crystal water (%): | 5,5-6,2 |
| Compressive strength (kg/cm2): | >400 |
| Bulk density (g/L): | 1100±100 |
| Degree of whiteness (*L) : | >95 |
| Dv(90) (micrometer) (Malvern particle Sizer) | 55-65 |
| Chemical Properties | |
| Chemical Name : | Calcium sulphate hemihydrate |
| CaSO4 ½ H2O (%): | Min 90.0 |
| SO3 (%): | Min 50.0 |
| CaO (%): | Min 34.0 |
| SiO2+R2O3 (%): | Max 0.8 |
| MgO (%): | Max 0.5 |
| CO2 (%): | Max 0,5 |
Alpha Gypsum is produced in different finess according to the customer’s request.
- Alpha Gypsum
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Application Areas:
Ceramic Molding Plaster
Dental Plaster
Screed Binder
Construction Chemicals
Orthopedic Plaster
Architectural and Decorative Adornments
Physical Properties Water / plaster ratio (%) : 38-42 Hemihydrate content (%) : >90 Initial setting time (min.) : 3-8 Final setting time (min.): 10-25 Slump diameter (mm): 160-200 Crystal water (%): 5,5-6,2 Compressive strength (kg/cm2): >400 Bulk density (g/L): 1100±100 Degree of whiteness (*L) : >95 Dv(90) (micrometer) (Malvern particle Sizer) 55-65 Chemical Properties Chemical Name : Calcium sulphate hemihydrate CaSO4 ½ H2O (%): Min 90.0 SO3 (%): Min 50.0 CaO (%): Min 34.0 SiO2+R2O3 (%): Max 0.8 MgO (%): Max 0.5 CO2 (%): Max 0,5 Alpha Gypsum is produced in different finess according to the customer’s request.
Packing: Bigbag, bagged and bulk
Shelf life (max): 6 months - Ram Press Mould Plaster
-
Application Areas:
High strength formulated
Ceramic and porcelain production
Long mold life
Good permeability
Storage: Should be stored in a closed and dry condition. Gypsum based products are not recommended to be stored in outdoors and extremely humid conditions. Humid condition causes to changes in the physical properties of plaster.
Physical Properties Water / plaster ratio (%) : 38-42 Hemihydrate content (%) : >90 Initial setting time (min.) : 3-8 Final setting time (min.): 10-25 Slump diameter (mm): 160-200 Crystal water (%): 5,5-6,2 Compressive strength (kg/cm2): >400 Bulk density (g/L): 1100±100 Degree of whiteness (*L) : >95 Dv(90) (micrometer) (Malvern particle Sizer) 55-65 Chemical Properties Chemical Name : Calcium sulphate hemihydrate CaSO4 ½ H2O (%): Min 90.0 SO3 (%): Min 50.0 CaO (%): Min 34.0 SiO2+R2O3 (%): Max 0.8 MgO (%): Max 0.5 CO2 (%): Max 0,5 Alpha Gypsum is produced in different finess according to the customer’s request.
Alpha Gypsum Sales Team
| AUTHORIZED | TITLE | PHONE | |
|---|---|---|---|
| Nuray BOBİNCİ | Senior Export Specialist | +90 (534) 277 00 42 | nuray.bobinci@nuhyapi.com.tr |
