Seriously, you are heading for trouble. Smooth concrete is not the kind of concrete you want to paint. I am advising you to contact a local concrete coatings expert that will assess and advise best steps.
The longer you leave it to cure the harder it is getting. Call someone today! Sooner rather than later is your best action plan because the solution will be time sensitive at this point. Every single day that passes from now for 90 days it's getting harder and harder.
Acid may or may not be your answer. There are bead blasters and concrete diamond grinders that may be your best option for adhesion. You simply cannot expect "any" coating to adhere without proper prep.
I'm in western Canada so a shop visit is a little out of my way but certainly you'd have someone that'd be happy to help from your region.
The risk most folks run is "trying" to put a concrete paint on and what can happen is certain areas may or may not adhere so you'll have a hell of a mess and then the coating brand is blamed unjustly. It's the concrete and prep that is ALWAYS to blame. Coatings companies HATE complaints so they do everything within their ability to make concrete coatings stick to concrete but are subject to two things 1) concrete condition 2) proper prep.
Last edited by FootStomper; 02/24/2017 4:43 PM.