How much prep needed for new concrete?

[dlc]

I'm getting ready to epoxy my garage in the next couple of weeks. The concrete is nearing 60 days old and is still perfectly clean with no oil stains anywhere. How much prep is needed to ensure proper adhesion? I'm hoping a simple acid wash and that's it. Any input?

 

[AlphaGarage]

A good acid etch should do the trick. Do not allow tha acid solution to dry on the floor, and neutralize it well.

 

[thegarageguy]

New or old, we diamond grind all of our floors

 

[Edger]

Diamond grind if you own the equipment, acid wash if you do not.