How to Protect Stained Concrete
Applying stained concrete sealers
Once a concrete floor or slab is stained, it’s important to protect it with a compatible sealer to help it resist water, stains, dirt, and abrasion. For floors, you should also apply a floor wax or finish to help preserve the sealer. A floor finish is easy to maintain and much easier to reapply than a sealer. Simply buff it out and reapply more when necessary. To keep exterior stained concrete protected, apply a new coat of sealer every year or two, or as necessary. When you begin to notice that water no longer beads up on the surface, it's time to reseal.

Photo: Concretizen
Watch These Videos on Protecting Concrete Floors
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Protective Coatings for Concrete Flooring
Heavy Duty Finishes to Protect Your Concrete Floor
Using Sacraficial Floor Wax for Concrete Floors