Hello, I´m master degree student in the laboratory of ceramic materials at the federal university of Rio Grande do Sul (UFGRS) located in Porto Alegre-Brazil. I´m interested to know further informations about a machine that I can test polymeric films and sheets about it gas permeability. I found the model: VAC-V2 Gas Permeability Tester. Look interesting for my research. I would like to recieve more information about this or other equipments that can be useful in this fields. Do you have some kind of catalog with prices also?! Thank you very much your attention, I´m waiting for some reply. Best Regards, Felipe Sánchez Materials Engineer