Flame Barrier, The (1958)

aka's: Beyond The Flame Barrier/It Fell From the Flame Barrier

Carol Dahlmann (Kathleen Crowley) persuades Dave Hollister (Arthur Franz) to help her search for her husband who disappeared in the Yucatan jungle while he was searching for a lost satellite. Dave, his brother Matt (Robert Brown aka: Lazarus in the Star Trek episode “The Alternative Factor”) and Carol locate the missing satellite and the corpse of her husband (Dan Gachman). Much to their horror, the satellite exudes a mysterious substance which disintegrates anything that comes into contact with it.