Saint Astier® pure and natural hydraulic limes (NHL) have been in production for over 150 years. The characteristics of the raw materials are unique and consist of an undisturbed layer of calcareous rock infiltrated mainly by silica with only traces of other minerals. Millions of tons have been used successfully on a global scale, in the most diverse climatic conditions.
Pure and natural hydraulic lime, feebly hydraulic, used when elasticity, low strength or high vapor exchange are desirable.
- Mortars for Weak Stones
NHL 2 Technical Data & Documents
Pure and natural hydraulic lime, moderately hydraulic, recommended when moderate strengths and better freeze-thaw resistance are required.
- Base Coats
- Stone Work
NHL 3.5 Technical Data & Documents
Pure and natural hydraulic lime, eminently hydraulic, specified when strength and high freeze-thaw resistance are necessary.
- Mortars for Hard Stones
NHL 5 Technical Data & Documents