Foamed propellants are based on crystalline explosives bonded in reaction polymers. Due to their porous structures they show high burning rates. Their properties, like energy content and material characteristics, can be varied in a broad range by using different explosive fillers or combinations of them and inert or energetic binders. Polymer bonded explosives and propellants can be used for developing insensitive ammunition for different reasons. Typical application areas are case ess ammunition and combustible cartridges. Foamed charges can be produced easily in different shapes by the reaction injection moulding process. Beside of this it is also possible to produce modular or layered charges of different porosity and as well composition.
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