Any white carpenters glue will work also, enen Elmers Glue-all. You want the glue to completely saturate the cloth for full strength. You can paint over the backing if you don't like the finished color.
I've never tried epoxies for backings so I can't help you there. It is not the glue and it is not the backing material but the combination of the two that makes a good backing. Some folks don't think that brown paper will make a good backing but if you think how paper is made, a mish mash of wood fibers, and saturate it with glue it acts like a solid reinforsed material and not just paper and glue.