Bonstone Last Patch Limestone Quart Repair Kit

Description

Last Patch Limestone is Bonstone’s UV-stable patching compound for limestone repair when the job calls for color matching, texture work, and exterior durability. This quart kit includes 1 quart of Part A and four 1 ounce Part B tubes, giving restoration contractors and stone shops a field-ready material for patching chips, rebuilding broken corners, and repairing cracks on limestone panels, steps, and sills.

Last Patch Limestone Benefits

• UV-stable chemistry helps color repairs hold up better in outdoor exposure.
• Added fillers and colors help the patch blend more naturally into textured limestone surfaces.
• Quart kit packaging supports larger repairs than the small touch-up kits while staying manageable in the field.
• Color options including Indiana Buff, Indiana Gray, and Texas Cream help crews start closer to the target stone.
• Useful for structural patch work, chip repair, and crack repair on architectural stone details.

Stone crews typically use Last Patch Limestone on repair jobs where appearance matters as much as bond strength. The live listing notes that the surface must be dry and that colors can be combined for better match work, which makes the product a good fit for controlled restoration on precast, cut limestone, and similar porous stone assemblies.

Common Applications for Last Patch Limestone

• Repairing broken corners on steps, panels, and sills.
• Patching chips, holes, and spalls on limestone and related masonry surfaces.
• Crack repair in limestone wall panels and trim pieces.
• Architectural restoration where color match and surface texture both matter.
• Field repairs on exterior stone details exposed to sun and weather.

Mixing and Surface Notes

The current product listing identifies a 7:1 mix ratio and a listed cure time of about 2 hours for the quart kit. Dry substrate preparation matters here, so remove dust and loose material before patching, then test your color blend on scrap or a hidden area when the visual match is critical.

Technical Details and Documentation

Live product information for this SKU calls out UV stability, colorable texture match, dry-surface requirement, and quart packaging with 1 quart Part A plus four 1 ounce Part B tubes. For manufacturer support and related stone repair materials, see Bonstone. Review the current technical data sheet before matching cure expectations to site conditions.

Ordering Help

This listing is best when the repair is larger than a touch-up but does not justify a bulk kit. For related patching and repair materials, browse our specialty chemicals category.

Need help choosing between the quart kit, a smaller touch-up kit, or the right color family? Call (800) 220-1966 or email [email protected].