King® HLM-500 C Series

Natural hydraulic lime-based masonry mortar with coarse sand for laying and repointing applications

King® HLM-500 C Series is a premixed, factory-bagged mortar made from 100 % natural binders and specially designed to be used when laying masonry units in historic preservation or new construction projects. This product is formulated with natural hydraulic lime, natural Type S hydrated lime, masonry sand containing particles variant from 0 mm to 5 mm (0 in to 0.2 in) (coarser than usual masonry sand), and an air-entraining admixture.

  • Factory calibrated mix
  • Formulated without cement
  • Formula similar to historic mortars
  • Excellent water vapour transmission properties
  • Ideal for joints larger than 10 mm (0.4 in)
  • Better resistance to freeze-thaw cycles than hydrated lime lime
  • Better resistance to de-icing salts than hydrated lime lime