Recently we sealed a patio that is about 500 sq. ft. with the Techni-Seal wet look. The finished product looks good but is somewhat glossy. First we powerwashed the entire patio and cleaned most of the sand out of the cracks. Then refilled them with concrete sand and on top of the we applied about a 1/4" of super sand and then let it set. A week later we came back and sweeped the entire patio off to remove all the loose sand and after finished with a blower. Then we used paint rollers with extension stick to apply it. Spread real well and fills the cracks but you have to kinda slop it on the rollers. Each can covers about 150 sq ft. but we used 5 cans just to make sure it was sealed. Now a month later, the weeds that would come up every week are gone and the patio looks real nice.