STUDY OF VISUAL CAST FLARE BINDER MATERIAL
ORDNANCE RESEARCH INC FORT WALTON BEACH FL
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Castable visual flare formulations and techniques were developed that produce luminous efficiencies greater than 50,000 candle-secondsgram. Improved luminous efficiencies and ease of casting were made possible with a relatively high binder percentage of sixteen percent. No pressure is required for casting. Liquid polyester binder systems were found to provide optimum characteristics for casting as well as luminous efficiency with their high oxygen and low carbon content. Optimum sodium perchlorate oxidizer to magnesium fuel ratio was determined to be one to one with oxidizer partially dissolved in liquid binder. Flare grains in sizes from 3.2 inches to 4 inches in diameter were cast and tested with no significant change in efficiency versus diameter.