Sakrete 65300845 Gray Surface Bonding Cement 50 Lb

Product Description

The SAKRETE OF NORTH AMERICA 65300845 is a gray surface bonding cement designed for trowel-applied damp proofing and structural reinforcement of masonry walls. This high-density cementitious coating bonds directly to concrete block and masonry surfaces without requiring traditional mortar joints, making it well suited for dry-stack block construction. The 50-pound bag yields consistent coverage and is applied by hand trowel or appropriate masonry tool. Masonry contractors and experienced DIYers working on both above-grade and below-grade wall systems will find this a practical, code-compatible option for surface treatment and moisture management.

This surface bonding cement is appropriate for residential and light commercial masonry projects. It can be applied to interior or exterior surfaces and performs above and below grade. Common applications include dry-stack concrete block walls, basement foundation walls, retaining walls, and garden structures where mortar joints are not used. The coating serves dual purposes: it adds structural integrity to the wall system while acting as a damp proofing barrier against moisture infiltration.

Key Features

• Trowel-applied formula works on both interior and exterior masonry surfaces
• Suitable for use above and below grade for versatile project applications
• Ideal for dry-stack block construction — no mortar joints required
• High-density coating adds structural strength to wall systems
• Provides damp proofing protection against moisture penetration
• 50-pound bag size suits standard masonry project quantities

Compatibility

Designed for use on concrete block, poured concrete, and masonry wall systems in dry-stack and conventionally mortared construction where a surface-applied bonding and damp proofing coating is required.

Installation Notes

Installation should be performed by a qualified masonry contractor or experienced tradesperson familiar with surface preparation requirements and applicable building codes. The substrate must be clean, structurally sound, and free of dust, oil, and loose material before application. Mix product per manufacturer instructions and apply with a steel pool trowel or appropriate masonry trowel to achieve uniform coverage. Follow local building codes regarding below-grade waterproofing requirements and curing conditions.