Rubberrized Bladder

Inflatable rubber bladders are made of high-grade natural latex rubber and used for pressurising dewars in the transfer of liquid helium or other gases. They Could also be used as helium gas reservoir at cryogenic systems..

The most common materials used to make air bladders are urethane, vinyl, rubber, plastic & polyurethane. In some cases, another type of fabric can be used as the base but coated in a substance more typically associated with water-proofing or creating an airtight seal. The most common of these is vinyl and polyurethane.