RECOMMENDATIONS ON THE CLEANING AND FIXING
GRIPPING MATERIAL
The gripping material should be aplicated with a trowel of teeth to achieve a correct distribution of the material on the whole surface. That surface should be flat and completely dry and clean of dust and grease. In walls, the large and medium formats should be put in a fine coat with glue cement with synthetic resin; while in smaller formats thicker coats of traditional mortars can be used. In floors, the use of glue cement with synthetic resins, excepting in the case of exteriors where more traditional mortars are permitted.
In the case of the porcelainic, the positioning is done in a fine coat with a base cement with synthetic resins.
JOINTS
The principal functions of the placing joints are: absorb deformation of the supporter, to gain more adherent space for the pieces and the gripping material, and to better the waterproof ness of the surface.
In the selection of the re-covering material you have to have in mind the place of placement and the situation of the material, even though it is recommended the use of joints with polimeric adhesives or synthetic resin and not whitewash Portland cement (because of its excessive porosity and lack of adequate adherence). In the market there exists a large variety of colors for re-covering.
CLEANING
The cleaning of the material, once put in place, should not be done with metallic trowel nor abrasive ones, recommending cleaning the remains of the glues and jointing material with a humid sponge.
In the case of persistent stains, clean with alcohol and scrub with a clean towel. If they don't disappear, consult with the corresponding technical department.