I read about unsanded grout in a DIY blog and want to buy it. But I don't know how to translate that to spanish. What is it called in Spanish or Castellano?
I know in Mexico, "grout" is called "yeso". I have heard that in some countries, don't ask me which ones, it is also called "lechada".
About the "unsanded" part, honestly I have no idea what that means. At best I can only infer that since sand means "arena" maybe, big emphasis on the maybe, it means that the mixture of "yeso" or "lechada" should not contain sand.