One component, Red colored, UV anaerobic sealant. 59621 is a low-viscosity penetrating material that can bond and seal ammunition liners and bullets. Specially formulated for pre-assembled components; Closed ammunition operates by capillary action, offering enhanced standard deviation and projectile pulling force. Sealed ammunition will meet and pass the US Army and US Navy waterproof test within 30 minutes. This product cures when exposed to UV light for 2 seconds and is formulated for high speed production. Silicone is internally anaerobically cured. Cured adhesive is a thermosetting plastic visible under black light for visual inspection, excellent solvent and suitable environmental resistance for temperatures from -40F to 400ºF (204ºC). Hernon® Blind Ammunition Sealants are a complete line of UV Cure adhesives.