Use of traditional lime mortars products that has been in existence for 6,000 years such as non-hydraulic and hydraulic limes, for applications such as repointing and rendering in conservation and restoration and new construction.

HSR is the sole Australian distributor for Roundtower products for the supply of hydraulic limes and other lime products to the conservation and restoration industry.

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.

Roundtower limes are used for construction, rendering, repointing, repairs, lime cement and millions of tonnes have been used successfully on a global scale, in the most diverse climatic conditions.

During this time the uninterrupted experience of the manufacturer has generated a wealth of technical information both scientific and practical which is always available to the user.

The importance of the use of traditional lime mortars on historical buildings is imperative to prevent deterioration of the fabric of the building.

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