#3 Light Gray, 25 lb Rubcrete in a 25 lb Pail is a non-gypsum, polymer-enhanced, one-component concrete resurfacing product for filling and smoothing interior and exterior vertical concrete and masonry surfaces. Excellent for patching bugholes, Rubcrete is intended for featheredge to 1/2” coverage. Rubcrete’s slow set time allows the user to mix the entire bag all at once since the material take several hours to set up. Material should be mixed using the proper amounts of water, utilizing a measuring cup, and mixed with a paddle mixer for 3-5 minutes. See data sheets for complete application instructions.