Abstract: A grenade arrangement for forming a visual and infrared screening cloud, having a frangible body, a hollow cylindrical solid compact cohesive mass of compacted generally mutually adhered fine metal flakes of a copper composition, particularly brass, and of submicron thickness and multimicron in lateral dimensions, a cylindrical mass of HE explosive within such hollow cylindrical mass for aerosoling such metal flakes into the atmosphere, and having HE explosive percussisvely activating detonator means, a launch propulsion charge and pyrotechnic delay means between the propulsion charge and the HE explosive detonator.

Abstract: A visual-and-infrared-screening cloud-forming product is made by forming a slurry of fine metal flakes of copper composition, particularly brass, of submicron thickness and multimicron lateral face dimensions, together with a volatile surface-wetting agent liquid, in the form of a liquid hydrocarbon, extruding and severing the extended slurry mass into small segments, drying the small segments, placing the small segments into a desired container shape and crushing such segments in place and into such shape, in particular in a hollow cylindrical shape. An HE explosive mass is inserted into the resulting compacted hollow cylinder, enabling bursting of the compacted mass.