The Fortcryl 4955 is indicated as a modifier of hydraulic systems especially in mixtures with cement. The Fortcryl 4955 gives the sand/cement and water mixture an excellent wetting and fluidity, allowing a great saving of water substantially improving the quality of the final product. This resin is considered low odor and ammonia-free. Its film can be considered semi-flexible and has excellent water resistance as well as good stability to aging and light. Fortcryl 4955 has a low foaming trend, however, if necessary we recommend the use of an appropriate defoamer in amounts smaller than 1%. For the development of formulations/application processes based on Fortcryl 4955, as well as adaptation of raw materials and evaluation processes, please contact the technical department of Oswaldo Cruz Química.