Dap Inc 2131 Concrete Bonding Additive Quart

Product Description

The DAP INC 2131 is a concrete bonding additive designed to chemically bond new concrete or mortar mixes to existing cured concrete surfaces. Sold in a quart container, it is formulated for interior and exterior applications where adhesion between old and new concrete is critical. Licensed contractors, masons, and experienced tradespeople use this product when patching, resurfacing, or leveling concrete surfaces. It works by being mixed into or applied onto the substrate before the new material is placed, creating a mechanical and chemical link that reduces delamination and failure at the bond line.

This additive is suited for a wide range of concrete repair and surface preparation tasks. Common applications include patching steps, capping walls, tuck pointing, resurfacing worn slabs, and leveling uneven concrete. It performs on both residential and light commercial projects. The quart size is practical for targeted repairs rather than large pours, making it a standard item for service contractors who handle concrete maintenance and patching on a regular basis.

Key Features

• Bonds new concrete and mortar to old cured concrete surfaces
• Suitable for patching, resurfacing, leveling, and tuck pointing applications
• Approved for both interior and exterior use
• Effective for capping walls and patching steps
• Quart container sized for spot repairs and targeted work

Compatibility

Designed for use as a bonding additive with standard concrete and mortar mixes applied over existing cured concrete in interior and exterior repair and resurfacing applications.

Installation Notes

Application is typically performed by a mason or concrete contractor. The existing surface should be clean, sound, and free of dust, oil, and loose material before the additive is applied. Follow the product mixing or application instructions for the specific repair type. Consult local building codes for structural concrete repair requirements on load-bearing or regulated surfaces.