Coverage may vary depending on surface and application. Generally one tub will cover 45 – 60 sq. ft. (4.18 – 5.57 sq. yd.) of pavers or 75 – 110 sq. ft. (6.97-10.22 sq. yd.) of larger flagstone (wider joints will affect overall coverage). WetLok can be used from a 3/16” (0.48 cm) joint width all the way up to a 5” (12.7cm) joint. Minimum joint depth is 1” (2.54 cm).