So I'm working on this project for a inflatable solar sail (so a spherical solar sail) and we are really only verifying the deployment of the sail in space (from a cubesat)....We are doing a mock PDR and I need to find info on the sail we'll be using. My job is to find an "off the shelf" inflatable balloon that can be used in space. Traditionally, Mylar is used for solar sails. I'm having trouble finding a suitable product. Know of anywhere or a helpful search tool for some type of balloon that can withstand space???