Masteremaco MB55350538 Acrylic Bonding Admixture 1 Gal

Product Description

The MASTEREMACO MB55350538 is a water-based acrylic polymer emulsion designed to improve adhesion, durability, and overall performance of Portland cement-based mixes. Formerly marketed as Acryl 60, this product is now sold as MasterEmaco A660. It functions as both a bonding agent and a mix modifier, making it suitable for mortars, plasters, stucco, and poured concrete applications. At 1 gallon per unit and a package weight of approximately 8.73 pounds, it is sized for field use on repair and surface prep jobs. Masons, concrete finishers, and general contractors are the primary installers of this type of admixture.

This bonding and modifying admixture is used wherever improved adhesion between new cementitious material and an existing substrate is required. Typical applications include patching deteriorated concrete, resurfacing slabs, applying stucco or plaster coatings, and bonding overlays to existing structures. It is suitable for both residential and light commercial work. The product integrates directly into the cement mix or can be applied as a bonding slurry coat to the substrate before placing fresh material.

Key Features

• Acrylic polymer emulsion improves bond strength between new and existing cementitious surfaces
• Compatible with Portland cement mortars, plasters, stucco, and concrete mixes
• Water-based formula for easier cleanup and reduced VOC concerns on site
• Formerly known as Acryl 60, now marketed as MasterEmaco A660
• 1 gallon container suitable for field-scale repair and resurfacing work

Compatibility

Designed for use as a bonding and modifying admixture with Portland cement-based mortars, plasters, stucco, and concrete repair mixes. Specific system compatibility should be verified against current MasterEmaco product documentation for the intended application.

Installation Notes

Application is typically performed by masons, concrete finishers, or general contractors familiar with cementitious repair systems. Substrate must be clean, sound, and free of laitance, oil, and loose material before the bonding agent is applied. Follow the mix ratio guidelines provided on the product data sheet for the specific use case, whether used as a slurry coat or as an admixture blended directly into the mortar. Do not apply to frozen substrates or when ambient temperatures are expected to drop below the manufacturer-recommended cure threshold.