The goal of this work was to study the wettability of the recycled polyvinylchloride (PVC) and polyethylene terephthalate (PET) surface, in which was used the technique of Plasma immersion (PI), by means of ionic bombardment using the gas Sulfur Hexafluoride (SF6) with total pressures down to 100 torr. The substrates were confined in a low vacuum reactor, and gas was excited by a radiofrequency discharge source, RF: (13.56 MHz) applied to the lower electrode (sample holder), coupled to a match in box. The surface wettability result of these polymers via "contact angle, ϴ", were compared with parallel studies in the literature. In this case, the technique of Infrared Absorption Spectroscopy (FTIR) was applied in order to analyze the possible physico-chemical changes in the surface of the polymers in the presence of an organic film of Isopropanol, SF 6 , whose values of ϴ were lower than the untreated material, even in the fluorinated atmosphere.Therefore, the parameters pressure, time or discharge power of RF were varied, In all cases, moderate to high fluorine is considered, with contact angles close to 120º are inferior to a similar treatment in literature, in which it was applied, a cooling prototype of the sampled electrode throughout the process; condition that resulted in PVC, ϴ ~ 156º (surface with higher degree of fluorine); and PET in turn reached ϴ ~ 140 °.