VG-ORTH Primo Futura improves the final strength of building products compared to those made with conventional beta-hemihydrates.

Chemical Name: Calcium Sulfate Hemihydrate

CAS Number: 7778-18-9

Chemical Family: Calcium Salts, Sulfates

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Enhanced TDS

Identification & Functionality

Applications & Uses

Markets
Applications
Industrial Additives End Use
Application Information

For the production of building products with a higher final strength compared to the use of conventional beta-hemihydrates:
Calcium sulphate-α-β-hemihydrate Finely ground : 
For use in industrial applications for the production of building products having a
higher final strength compared to conventional β-hemihydrates:
 

  • As a sulphate carrier in building chemical products, e.g.levellin compounds, floor compounds, screeds
  • As a gypsum binder according to DIN EN 13279-1 for further processing, e.g. for premixed gypsum building plasters for plastering and gypsum-based compounds for filling and finishing work in solid and drywall constructions.
  • As model and/or mould material for coarse and/or fine ceramic applications in the production of e.g. roof tiles, sanitary ceramics, earthenware, stoneware.
  • As an input material of inorganic origin produced in Germany without additives, e.g. flow aids

Properties

Physical Form
Appearance
Solid Powder
Particle Size Distribution
ValueUnitsTest Method / Conditions
Particle Size (screening (0.2 mm))max. 0.02wt.%-
Particle Size (screening (0.9 mm))max. 0.1wt.%-
Particle Size (screening (0.04 mm))35 - 45wt.%-
Specifications
ValueUnitsTest Method / Conditions
Sprinkled quantity184 - 205g
Gypsum BinderType A--
Bulk Density900 - 950kg/m³-
FinenessFinely ground--
pH6 - 9--
Calcium Sulphate Hemihydrate Contentmin. 95%-
Calcium Carbonate Contentmax. 2%-
Water-Gypsum Qalueapprox. 0.49 - 0.54g/100 ml-
Compressed Volume75 - 85g/100 ml-
Initial Setting Time8 - 16min-
Final Setting Time20 - 36min-
Flow-table Spread180 - 230mm-
Flexural Strengthmin. 6N/mm²-
Compressive Strengthmin. 16N/mm²-
Surface Hardnessmin. 30N/mm²Brinell

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Country Availability

Storage & Handling

Shelf Life
6 months