Fluorescein 40GR sachet

Fluorescein is a fluorescent yellow-green colouring powder that turns a phosphorescent green when in contact with water. It comes in the form of a loaf in a waterproof orange sachet. Remove the protective strip from the sachet. Its dilution time is 8 to 12 hours. The effects are visible several hours after immersion. 40g sachet for lifejackets. 80g sachet for survival suits and rafts.