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Homepage > Activities > Cement > Prompt natural cement

Prompt cement: Vicat's flagship product

A natural cement marketed by Vicat for almost 150 years, prompt natural cement is a hydraulic binder of incomparable quality used in in green building and renovation projects.

Maintenance of sea walls and sealing of pvc tube in a cement casing

Vicat Prompt is a clear ochre-colored natural cement that binds and settles quickly. For nearly 150 years, this natural hydraulic binder has been manufactured with the same process: fired at lower temperature than artificial cement.

Prompt natural cement has various advantages when used in construction and renovation work:


Coating on cork, fast lime, Saint Pierre de Chartreuse (Isère, France)

  • Its quick binding, resistant and waterproof qualities make it the preferred choice of builders who do quick masonry work and are involved in sanitation work under varied conditions (cold, humidity, immersion). 
  • Its clear ochre color, low modulus elasticity, and excellent durability allow for optimal use in the restoration and decoration of heritage buildings and structures. 
  • 100% natural prompt cement is compatible with hemp fibre and lime for manufacturing mortar and hemp concrete, as well as hemp fiber blocks for wall, floor and roof insulation.

Quick masonry work, water and sanitation, restoration and decoration of heritage buildings and structures, green building ... these are some of the many uses of our high-performing natural cement. Prompt cement is packaged in 5 kg or 25 kg bags, in cartons or on palettes.

Tempo packaging

Tempo … to control setting time :
The setting time can be managed with Tempo, a product especially made to take into account the pace of the work being done.  Tempo is a retarder made of 100% food grade citric acid and is the most efficient setting retarder for prompt natural cement. Its use is indispensable for the workability of the cement laying or pouring.

 Restoration and decoration

Restoration of the Touvet Castle with natural fast cement (Isère, France)

  • Restoration of the Touvet Castle in Isère.
  • Enhancement of the existing decorative elements (lintels, moldings, arches, etc.) and the creation of decor and framing elements for elevating the new glass panels of a house in the town of Yzeron in the Rhone department. 
  • Identification templates for the restoration of the Bressieux Castle in Isère.
  • Re-jointing of stones in the Vogüé castle in Ardeche. 


Anchoring, St Etienne-de-Saint-Geoirs (Isère, France)

  • Sealing
  • Work repairs
  • Laying of decorative low walls in stones or for surface paving

Water and Sanitation

Pond waterproofing, Aizenay (Vendée, France)

  • Waterproofing of basins, reservoirs
  • Construction of cofferdams
  • Water network projects
  • Eco-construction projects
  • Hemp-based wall insulation 
  • Decorative coating 

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Contact our teams

Direction des ventes
4, rue Aristide Bergès
Les Trois Vallons
BP 137
38081 L'Isle d'Abeau
Tél +33 (0)4 74 18 41 00
Fax +33 (0)4 74 18 40 18


Re-jointing of stones in the Vogüé castle in Ardeche


Restoration of the Bressieux castle (Isère, France)


Hemp-based mural insulation