A collapsible, reusable bulk material container assembly, kit and method for assembling and using same are disclosed. According to the invention, at least one part of the external surface area of the filter element separated from the external surface area for forming the filter cake is provided with at least one corrosion and heat resistant polymer-based material. Accordingly, the compounds of the present invention are useful for treating, preventing, andor inhibiting these diseases. The application may enable purchase or downloading of the associated stories.