PROTECTIVE SURFACE COVERING HAVING HEAT AND MOISTURE RESISTANT PROPERTIES FOR CASELESS AMMUNITION

摘要

A heat and moisture resistant surface covering for propellant is provided. This surface covering is consumed in the chamber of a gun with the propellant charge being protected by the surface covering. The surface covering is prepared from a polyolefin film base material having a heat resistant and combustible composition bonded to the exterior surface of the base material. The surface covering of this invention has particular utility for use with caseless ammunition.