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Bonstone Last Patch Limestone


Buy Bonstone Last Patch Limestone

Quick Overview

Bonstone Last Patch™ Limestone is a UV stable patching compound for interior and exterior aesthetic repairs to limestone, sandstone, concrete and masonry.

Some of the larger projects Bonstone Last Patch Limestone has been used on include: George Bush Library in Dallas, Texas; Sharon Lynn Wilson Center in Brookfield, WI; Old Soldier's Home in Washington DC.


  • Aesthetic Patches & Repairs on Coarse Grained Stones
  • Ideal Patching Mitered Corners
  • Aesthetic Repairs for Concrete & Masonry Substrates
  • Ideal for Limestone Step & Sill Repairs

Benefits & Attributes:

  • Absorbs Water Similar to the Porous Substrate Surrounding it
  • UV Stable -- Withstands Sun Exposure Without Discoloring
  • Can be Used Below Freezing Temperatures
  • Can be Color Matched
  • For Even Faster Set Time, Use our Accelerator. Accelerator is Not Recommended for Work Over 85 Degrees Fahrenheit

Technical Data:

 Mix Ratio = 7:1 by weight

Set Time = 15 min @ 75°F

Available in = Quart kits

 Data Sheet

adobe-small.jpg SDS 

 Mix Instructions

 Last Patch Color Chart

 Can be tinted with Powdered tints and Stone dusts.


 Limestone Fireplace

 Limestone Column Patching

 Limestone Repair Before and After

MORE IMAGES (click to enlarge)