The magnesium hand float is a staple in any NYC sidewalk contractor's tool kit. Magnesium is highly favored because it slides smoothly over wet concrete without sticking, effectively leveling high spots and filling small voids left after screeding. This process also helps bring water-rich cement paste to the surface, which is essential for achieving a durable, compliant broom finish. Properly floated concrete is less likely to scale or flake during harsh winter freeze-thaw cycles.
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