DuraCeramic (Ovations) grout is a premixed, sanded acrylic grout for use with grouting joints 1/16" to 1/4" in width. Ready-to-use easy application. Resists cracking, color consistent, no shading, stain-resistant, easy care. Not for exterior, shower floors, or underwater use. Set up time 16 to 24 hours. Coverage: at 1/16" 450 sq. ft. per gallon; 1/8" 325 sq. ft. per gallon; at 3/16" 275 sq. ft. per gallon; at 1/4" 225 sq. ft. per gallon.