John if you do seal it, get ahold of me. I’ve got some really good products I’ve used. Various concrete sealers are very different qualities.
Now that I think of it, There are so many companies looking for something to do that you should just hit a few Decorative concrete companies as they’re the most fluent in specialty chemicals and cleaning. You’re looking at spending 3-$500. For work that is worth the effort.
Otherwise, If i’ve time, I can help you. Maybe talk you into some concrete countertops too 