Modern masonry relies on High Portland Cement products for their high strength and fast set times. However, most historic buildings were constructed with little to no Portland Cement. To protect the original masonry of historic buildings, the appropriate binders need to be used in mortar and plaster restoration mixes. US Heritage Group offers lime-based binders for the restoration of historic structures in the form of Slaked Lime Putty and Hydraulic Limes.
Be sure to consult a qualified historic architect or mason when selecting a binder formulation for historic restoration or contact the experts at US Heritage Group for assistance with material selection.