Saint-Gobain Gyproc Egypt

Head Office: 94, Tahrir St. 2nd Flr
Maghrabi Plaza, Dokki, Giza , Egypt

Express Sina

Express Sina is high quality gypsum extracted from Sinai rocks- with 94% whiteness used for cornices and decorative forms moulding.

Key facts

  • Adjusted setting time to maximize moulding productivity
  • High compressive strength
  • Extracted from high quality Sinai rocks
  • One component pre-mix -only water addition is required
  • Moulding
  • Pre-cast cornices
  • Gypsum forms



Substrate must be sound, free from dust, loose particles, cement laitance, curing compounds, oil, grease or any other contamination


Express Sina is sprayed on water with the right ratios (Don’t add water to powder), then leave for 2 minutes till it soaks completely. Stir the mix perfectly in all directions till reaching a homogeneous mortar with the convenient consistency for the application. It is preferred to use mechanical mixing.

 Express Sina is used for moulding purpose, fill the mould with the product as the standard practice.




Wet Density

1500 gm/l

PH Value


Workability Time

3 -7 minutes

Initial Setting time

13 -20 minutes

%  Mixing water

70 -90%


94 -97%


Storage & Packing:

Express Sina is supplied in 30.3KG paper sacks constructed in two layers; the inner layer is brown paper and the outer layer is white paper. 

The construction of the sacks ensures that the contents will be protected adequately under normal conditions of transport, storage and handling.

  • Packs / Ton: 33 

Storage Conditions:

Must be stored in a dry area away from the reach of humidity or any water source, preferably on wooden pallets and covered with impermeable cover to maintain a steady quality the longest duration possible

  • Storage Validity: 3 months


Gypsum Building Plaster (B1) with an initial setting time <20 min and compressive strength ≥ 2,0 N/mm²


EN 13279-1 - B1/20/2

Customer Service Hot Line 19230

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