Natural Lime Building mortars for new bricks, concrete blocks and stone walls
St Astier Natural Hydraulic Limes (NHL)
Binders for site mixed mortars
NHL 5 or NHL 3.5 mixed at 1: 2.5 with well graded sharp sand (0-3mm)
HOURDEX or TRADIBLANC mixed at 1 : 3 with sands as above. Hourdex is a grey binder and is better used in building masonry units destined to be rendered. Tradiblanc is white and therefore will reproduce the aggregates colour giving a warmer visual appearance.
NOTE: light weight blocks should be build with NHL 2 at 1 : 2.5
Ready mixed mortars
The above mortars can be supplied in a ready mixed form in bags or big bags from most St. Astier distributors. When local sands are available, the traditional colours of building mortars will be maintained also in new build projects.
For further Guidance, contact your St Astier Distributor.