Available in a range of strengths. They can set in damp/wet conditions and should be used where additional strength/durability is required. They are also excellent for new-build projects and offer sustainable alternatives to cement.
Lime
Hydraulic Lias Limes: Blue Lias HL2 (NHL 3.5)
An English moderately hydraulic lime
Castle Hydraulic Lime NHL 2
A French feebly hydraulic lime.
Castle Hydraulic Lime NHL 3.5
A French moderately hydraulic lime.
Castle Hydraulic Lime NHL 5
A French eminently hydraulic lime.
St Astier Hydraulic Lime NHL 2
A French feebly hydraulic lime
St Astier Hydraulic Lime NHL 3.5
A French moderately hydraulic lime
St Astier Hydraulic Lime NHL 5
A French eminently hydraulic lime