Tierrafino Stone mix with water. Tierrafino Stone is delivered as a dry powder in buckets. It is possible to add water and apply the plaster immediately, but we strongly advise you the following procedure: Add 6 liters water to the 12,5 kg Tierrafino Stone and close the bucket, stirring is not necessary. Let the bucket rest for a minimum of 72 hrs. When opening the bucket you will find a seemingly dry mass. Throw the Tierrafino Stone in a plasterer\'s tub, and by adding a little water, quickly a smooth paste will occur by stirring well.