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Natural Hydraulic Lime Mortar (NHL)

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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. All of our historic plaster can be custom blended with specialty aggregates to match original mortar or restoration specifications. Millions of tons have been used successfully around the world in a wide range of climates.

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St. Astier NHL 2.0 | Detailed Information Sheet | MSDS Sheet

55lb bag – 30 bags/skid. Skid discount available.

This is a pure and natural hydraulic lime mortar, feebly hydraulic, used when elasticity, low strength or high vapor exchange are desirable. It is recommended for finishes and mortars for weak stones.


St. Astier NHL 3.5 | Detailed Information Sheet | MSDS Sheet

55lb bag – 30 bags/skid . Skid discount available.

This is a pure and natural hydraulic lime, moderately hydraulic, recommended when moderate strengths and better freeze-thaw resistance are required. It is recommended for base coats and stone work.


St. Astier NHL 5.0 | Detailed Information Sheet | MSDS Sheet

66lb bag – 30 bags/skid. Skid discount available.

This is a pure and natural hydraulic lime, eminently hydraulic, specified when strength and high freeze-thaw resistance are necessary. It is recommended for slabs and mortars for hard stones.