Sirchie Three Day Transparent Detection Fluid, 1/2 oz

The Sirchie Three Day Transparent Detection Fluid (1/2 oz) is a highly viscous, transparent detection fluid with the same usage restrictions applying as those regarding visible detection powders and pastes. This fluid should never be applied to unplated or unpainted metals. Wear disposable vinyl or polyethylene gloves and use a cotton swab to apply detection fluid to a target object. When contact is made with the tagged object, the combination of body salts and natural light develops a brown to black color on the skin that cannot be removed by washing and it will remain visible for approximately three days.