The principle is based on the use of deionized water to facilitate dissolving od salts and the movement to the
surface of soluble salts through prolonged contact with the material. (“transfer” of the slat to the surface is made it possible by the capacity of the DESAL to absorb solvent, in this case water).
The product used for the paste contains natural materials, such as high-purity cellulose pulp, that
guarantee that the technique can be used on different types of natural and artificial stone substrates.
The application time can be determined via preliminary tests on the surface itself, so as to optimize the cleaning
process, using conductivity analysis on pulp samples taken at pre-fixed intervals (extraction procedures
according to UNI 11087 norm) to determine the treatment efficiency curve. Times generally vary from