The Urea Problem
Solid urea (granular, prilled, pastilles, etc) is the most commonly used source of nitrogen in the agricultural industry.
But urea’s affinity to absorb moisture and high solubility often leads to lump formation during storage, or the CRH (Critical Relative Humidity) of a fertiliser bulk blend containing urea is lowered to a point where it becomes difficult and limiting to handle and apply.
It is also notoriously difficult, expensive and complex to treat, coat or condition urea to behave differently.
The OptiU® Solution
OptiU® is a liquid-at-ambient coating for urea fertiliser that improves the handleability of solid urea. Coated urea does not cake together, or form lumps:
It will remain free-flowing in humid bulk storage conditions.
It will remain free-flowing when bagged, even if stacked and under pressure.
OptiU® also improves the solid urea’s ability to be bulk-blended with other fertiliser grades without lowering the blend’s CRH. OptiU® can be used as the “carrier-component” for humates, NBPT molecules, nano particles of sulphur, zinc oxide, copper oxide, and many more.
OptiU® (or OptiU® containing NBPT, humates, S, ZnO, etc) are applied at ambient conditions in any standard fertiliser blending system. The coating “sets” in 60-90 seconds, to form a “barrier-film” on the solid urea’s surface. This film does not wear off or become less active over time.