of the carbon carbon double bonds in the polymer the generation of heat with the consequential heating of surrounding materials occurs when hydrogen and oxygen combine rapidly and exothermically in the presence of a catalyst and as a consequence of the hydrogenation of the unsaturated carbon carbon bonds in a organic polymer molecule if a means to control the reaction rate is not provided such as that described in the present invention detonation of the hydrogen oxygen mixture can take place this invention therefore provides a means for preventing an uncontrolled exothermic reaction by providing a material which if melted will coat the surface of a catalyst material and substantially prevent further catalysis by providing a permeation barrier and reducing available surface area a composition comprising a wax compound blended with a the getter powder is thus disclosed which achieves this result in particular it is suggested that a loose hydrogen getter powder would be held together as a molded mass a tablet for instance by the binding action of a small quantity of a natural or synthetic wax since these waxes have the property of relatively low melting at temperatures typically below 100 u00b0 c and more particularly between about 40 u00b0 c and 85 u00b0 c and because they also exhibit low viscosities above their melting points these materials could function as a safety trigger.