HRM Repair Kit


Bonstone’s Historic Restoration Mortar (HRM) Repair Kit is ideal for repairing chips, cracks, broken off corners with limestone, sandstone, brick, terracotta, precast and concrete.

This lime-based mortar is a breathable system which allows for vapor transmission. The kit enables you to patch common job site repairs.  Additional tints are available for custom matching

Product Information

  • Breathable
  • Durable
  • Matches Natural Finish
  • Fast Setting (30-60 minutes @ 75F)
  • Easy to Use
  • Strong Bond