UV Longwave soluble powders come in two types:

Invisible

• Invisible marking
• Security tagging
• Invisible leak detection
• Hand Stamps

Daylight Fluorescing

• Highly visible under ultraviolet light
• Leak tracing and detection
• Batch contamination
• Highly stable under harsh chemicals

 Drawbacks Of Soluble Powders

• Soluble powders are typically organic based materials which will degrade under sunlight.  If left exposed to the sun, powders typically degrade in about 1 week.  If not exposed to sunlight, the powders last indefinitely. 
  

Advantages Of Soluble Powders

• Soluble powders are typically organic based materials which have much more brilliant colors under UV light when compared to their inorganic, crystalline equivalents
• Soluble powders can be more easily made into a solution which can be used like an ink.
• Items marked with inks made from the powders have greater invisibility under normal light than non-soluble inks.