Apply the topcoat the same way that you painted the floor. I did 2 coats of H Wet Look Concrete Sealer.
Amazing white concrete countertops and all the detailed how-to's on this blog.
"Green" penetrating sealer for concrete, stucco and masonry
applying concrete to countertops
Tips for Choosing A Concrete Countertop Sealer by designdininganddiapers.com
MODE CONCRETE: Basement Concrete Floors Naturally Look Amazing and Modern - Simple Process with Concrete Sealers and Wax
Natural Gray Concrete Floor
How to stain concrete yourself... love these stones outside! Definitely need to remember this
How to Choose The Right Concrete Sealer Indoor - Outdoor