ACIDIC BONDING CONCENTRATE moisture 500 ml ACIDIC BONDING CONCENTRATE moisture 500 ml is a specialized product that provides excellent bond strength, adhesion, and durability for all types of surfaces. This product is perfect for use on concrete, stone, brick, tile, and other porous surfaces. It helps to create a strong chemical bond between the surface and the material being applied. It is a concentrated solution that can be diluted with water for use on various surfaces. This product is ideal for use in construction, renovation, and maintenance projects.