Abstract: A plastic mouldable explosive composition comprises a gelled binder and a particulate explosive filler contained in the binder, wherein the binder comprises a blend of polyethylene wax polymer together with a tackifying resin comprising a polyisobutene polymer. Desirably, the amount of the polyethylene wax polymer in the composition is in the range 2 to 35 percent by weight, the polyethylene polymer having a molecular weight in the inclusive range 3,000 to 15,000. Desirably, the polyisobutene polymer comprises a liquid polyisobutene having a molecular weight of from 500 to 7,000.

Abstract: A thermoplastic bonded energetic material which comprises a composition which comprises: Component A: an energetic filler material; and Component B: a polymeric binder for the energetic filler material; wherein the ratio of the weight of Component A present to the weight of Component B present in the composition is in the inclusive range from 1:10 to 1991:1 and wherein Component B comprises an intimate mixture of Ingredients 1 and 2 as follows: Ingredient 1: a copolymer of ethylene and vinyl acetate; Ingredient 2: a copolymer of butadiene and acrylonitrile; the ratio of the weight of Ingredient 1 present to the weight of Ingredient 2 present in Component B being in the inclusive range from 1:10 to 10:1.