Historic Restoration Mortar (HRM)


Historic Restoration Mortar (HRM) is a two-component, lime-based, latex modified mortar for the restoration of historic masonry structures. It is ideal for pits in the face, open cracks, and patching for limestone and sandstone.  HRM COLOR CHART

Note: During periods of cold weather, shipping of this product may be delayed to ensure the highest quality.


  • Breathable
  • Durable
  • Matches Natural Finish
  • Fast Setting (30-60 minutes @ 75F)
  • Easy to Use
  • Strong Bond
  • V.O.C. Free
  • Available in 3 standard Colors
  • Custom Color Matching Service available


“I recently began using Historic Restoration Mortar to repair broken headstones. I had been using epoxies that I was never content with. HRM is fantastic!”
— Stone Revival Historical Preservation


  • Surface repairs to historic stone and masonry structures.
  • Skim coating vertical stone
  • Designed for durable aesthetic repairs
  • Easy to mix and apply to your surface
  • Designed as a slurry or knife grade application
  • Repair pits and holes
  • High bond adhesive

Additional Information



Neutral, Gray, Indiana Buff, Silver Buff, Red Sandstone, Birmingham Buff, Mankato Cream, Mocha Cream, Mankato Pink, Dark Chocolate, Mountain Valley

Technical Data

Mix Ratio = add latex to form slurry to mortar consistency
Set Time = 1-3 hrs @ 75°F


7lb, 63lb, Repair Kit


Historic Restoration Mortar (HRM)

In stock
$30.25 $230.94
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