St Astier pure hydraulic lime products have been produced for over 150 years. They are exported all over the world and are recognised as the market leader in hydraulic lime.

The reasons for choosing St Astier Natural Hydraulic Lime (NHL)

PURITY
No ADDITION of any kind is made to St Astier NHL to enhance their performance.

NO NEED FOR BLENDING
St Astier has a range of products which allows for the selection of the most suitable binder without having to add pozzolans or additives

COMPATIBILITY & SUITABILITY
The range of binders each with their different performance characteristics ensures the compatability of St Astier NHL mortars with existing mortars whatever their age.

FREE LIME CONTENT
Responsible for workability and self healing in NHL lime mortars

ECONONY
The low bulk density of all NHL products will produce more mortar as they are purchased by weight but mixed by volume.

NHL Mortars give you..

ELASTICITY
An essential factor in building without construction joints. Important in minimising shrinking and cracking. It allows for minor movements.

PERMEABILITY
Good vapour exchange qualities allow for condensation dispersion.

RESISTANCE TO SALTS
The absence of any potentially damaging additions make sulphate attack and alkali-silica reactions impossible.

INSULATION
The excellent vapour permeability of NHL mortars reduces moisture in walls, therefore significantly improving insulation levels.

SAND COLOUR REPRODUCTION
The whiteness of the NHL binders will reproduce the colour of the aggregate used.

CO2 ABSORPTION
Probably the most eco-friendly feature of using limes. CO2 is re-absorbed during the carbonation of the free lime.