how do some of you guys compare doing gas station without sand then with sand? less tire marks? less wear? this is with coal tar sealer also. I don't know about the previous owner of our business but since my dad bought it in 2005 we only did one gas station in 2007 or 2008. this weekend we did our second and what a pain in the butt it was. we added more additive then normal to help dry it faster. the guy doesn't even let it sit for 8hrs before opening and what a bunch of tire marks and a few spots wearing where people like to turn the wheels. so I was wondering if no sand is better for high traffic places? we've done a warehouse with no sand 1 coat and still looks great even with tractor trailers driving on it all the time. now I know it sat for 24hrs before opening so that could be the difference. but the next station we do they either need to shut down or leave the sections closed off for well over 12hrs but should we do it without sand and see the out come? or maybe with sand but keeping closed longer maybe have a better out come then what we did this weekend? just curious to see how other companies deal with this and what they think works best. my father says he'll never do gas stations again but the company says they got like 20 stations so if we can figure this out to make it look better and hopefully last longer then its worth the headache of dealing with people. thanks for any input.