Terra Cotta Kitchen Floor Tiles

[Carley M.]

I recently bought a fourplex and I am starting to make improvements to the owners unit. One of the items on the list was to replace the kitchen floor (currently adhesive tile that is peeling up). I was able to buy 12 boxes of 6x6 terra cotta tile at the local Habitat for Humanity Restore (with 2 big buckets of tile adhesive) for $125. The Project Manager at Habitat advised me that I would need to seal the tile several times.

Is sealer from Home Depot sufficient, or would there be a benefit to going with commercial grade sealer from a builders supply or tile store?