epoxy flooring at home depot
A concrete surface that has been etched is more rough than one with finer texture. It should look like 100-grit Sandpaper. You should also dribble water on it. You can test if it is texture enough if it isn't. You can make a dark profile quickly by pouring water on the flooring. Many single-coat epoxy kits include etch and clean solutions that are not strong enough to achieve the right profile.