Villa and Mission's Profile

Go to www.aldonchem.com under the mexican tile section http://www.aldonchem.com/mt-mexican-tile-seal-clean.htm . they have an excellent site for your quetion on sealers. They have the best website for explaining sealers and Terracotta/Saltillo
I will let you know thier are hunderess of kitchens with terracotta and they last and work. the key is the sealer. They have Terracotta in New Mexico where it gets realy coold and work.