Length - 05:22 Gauge rakes and smoothing paddles are used when applying cement-based toppings or overlays. There are a wide range of choices for gauge rakes, so find out what your topping manufacturer recommends. The gauge rake helps lay down a cementitious material at a uniform thickness. A gauge rake should have rounded edges to ensure that the bonding primer that is often required will not be punctured. After using the gauge rake, use the smoothing paddle to smooth out the overlay's surface. Consider using a paddle with rounded corners, to avoid leaving ridge lines in the surface. Another way to avoud lines is to run your smoothing paddle in a perpendicular pattern to the way you gauge raked the surface. When smoothing, overlap your passes by 3 to 4", be sure not to press down too hard, and try to maintain the overlay's uniform depth.
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