The pressing and firing process to make a porcelain tile gives it increased strength and makes it less porous, taking in less water than ceramic tiles.  There IS a difference in the way individual manufacturers complete this process which can make choosing a quality porcelain tile confusing.  That’s where we can help.  We can offer you the correct advice on what needs sealing and what doesn’t, explaining the differences between pre-sealed and Nano seal, and how to maintain the porcelain tiles you choose.