This can be considered the most critical point of every floor but at the same time the strong point in MOMBRINI’s technology. The accurate choice of the type of resin, the analysis of the variables which determine the nature of the catalyst, the correct mixture of the quartz grains, the mixing carried out at the work site, the application of pressure during tiling, joint by joint, by trowel and not by spreading, and last of all cleaning up using special machinery and a suitable detergent for the preparation of the floor cloth and the flush smoothing of the fissure: these, in brief, are the stages of a study which began in 1962 and which is not yet finished.