Sealing the floor is done below the floor so that ship has sailed. If the exterior drainage is working there should be no water pushing up on the floor, are you seeing water now?

 

I am not seeing water but moisture meter has a 99% reading when you put it on the subfloor

 

Moisture Control Archives was planning on using something like this to roll on to the floor

 

There is cheap test that will give you some idea of what you have.
Tape a sheet of poly on the floor and seal the edges. After a day or two check to see if water is on it or under it.
To me anything that you paint on top to stop water is a waste of money and time and it will soon after that you will be fixing the issue by some other means.

 

The taped down sheet of poly is only a test for that day, tells you nothing about the year round variations.
There are subfloor materials that elevate everything allowing drying to occur below. No experience with them but I would suggest some research.

Bud

 

That test is a big joke . It tells nothing about water / moisture coming up from the concrete , but it does tell what the dewpoint temperature of the concrete is .

 

I would only be guessing.
Confession, I don't like finished basements. Years back helped a neighbor clean out his after a water pipe broke, 3' of water. Personally I have had to potential disasters, broken washing machine hose and a busted pipe on the other end of the house. Both areas have floor drains to daylight so minimal flooding and easily cleaned up. Also, no drywall which does poorly when wet. Unknown how your finished floor will handle such a disaster so potential problems go beyond moisture vapor and mold.
Be sure your home owners insurance coverage includes the new exposure.

Bud

 

Yeah my basement was finished before and flooded which is why I'm doing this work so I feel you on that. But it's a rental unit down there with a kitchen and bath so I figured I'll get my money back in time. Will likely not buy a house with a finished basement or even a basement again. Such a pain.