Check out our Videos Section for more product info and how to videos - - - - - - We do Custom Formulations! Click for more info.


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 and repairs on coarse grained stones
  • Ideal patching mitered corners
  • Aesthetic repairs for concrete and masonry substrates
  • Ideal for limestone step and sill repairs
  • Absorbs water similar 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°F




Mix Ratio = 7:1 by weight

Set Time = 15 min @ 75°F

Available in = Quart kits

Technical Data Sheet

adobe-small.jpg SDS

Last Patch Limestone Video

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)