Guardian AGIS is an additive slurry containing Silver Ion Nano Technology. Guardian AGIS is a non-flammable milkish white liquid slurry used to convert typical UV Cure or Aqueous Clear Coats to a coating offering substantial reduction of microbial activity when properly mixed into solution at the correct % load and blend speed based on ASTM #2180 Testing Standards. Guardian AGIS has NOT been registed with EPA and is NOT being sold or marketed as an "Anti-Microbal" Coating, but as an additive mixture that offers smililar protective properties to any coating base it is mixed with at the suggested load rates. Because of its base neutral requirements Guardian AGIS can be mixed with any liquid coating or paint system and acheive similar results. Shelf life is indefinite, however we strongly recommend use of the product within one year from opening. This is available in 1 pint or 1 gallon.