Polymer coated urea is the best controlled released fertilizer which adopt China top-grade biodegradable ultrathin polyurethane technology. It has the advantages of improving fertilizer utilization rate(30%-60%), reducing the amount of use and fertilization, reducing production cost, reducing environmental pollution, and improving the quality of crop products. The outstanding feature is that its release rate and release period are organically combined with crop growth rules, so that fertilizer nutrients can be effectively utilized. It widely used on horticulture like turf,golf lawn,flowers and also used on field crops like paddy,cotton,maize,wheat..etc.

 Specification:
 Types: Polymer Coated Urea,Anti-Floating Polymer Coated Urea
 Nitrogen content: 44% - 45%
 Released Period: 30-240 day or as customer require
 Particle Size: 2-4.75mm
 Color: Green/White/Yellow/Blue/Magenta
 PH: 7.0 
 Density: 1.3
 Packing: 20kg/ 25kg/50kg/1MT
 Target:Wheat, Paddy, Maize,Fruit,Glof turf,Flowers..etc

We can also produce other polymer coated fertilizer like Polymer coated diammonium Phosphate(DAP),Polymer coated potassium sulfate(SOP),Polymer coated potassium chloride (MOP),Polymer coated potassium nitrate(NK)..or others as customer require.

Characteristics& Features:

1. Release period can be regulated between 30-120 days as customer require

  2. Eco-friendly polymer material which is harmless to the soil, easy to decompose and no residue.
  3. Ultrathin coating(thickness 20-60μ) to make the purity of fertilizer much higher;
  4. Nutrient Release Consistent with Crop Absorption rules, highly increase fertilizer utilization rate
  6. Non solvents are used during the production process, environment friendly.
  7. Polymer coated urea can be blended with other nutrients to enhance the total nutrients.
  8. Release for every urea particle is homogeneous. Resin coating is very smooth and uniform.
  9.Reduced risk of scorching and more effective nutrient delivery, requiring typicaly half dosage of normal NPK compounds
 10.The release of the nutrients is only affected by temperature, not affected by moisture, microbial activity, pH.

Coating Technology:
Ultra-thin (20~60μm);
High Water–Absorbent;
Non organic solvent used in coating process;
Biodegradable Oligosaccharide Derivative Polyurethane;

It adopt High temperature coating process. After high temperature treatment, it makes particles of urea in a slightly soluble state first, then spray resin on the surface of urea granular to form a ultra-thin uniform film. The effect of slow release is ideal and releasing rate is consistent with the crop fertilizer requirement (similarity≥80).There is no direct connection between the controlled releasing period and the coating thickness. The coating technology used by our company has been developed over several years.One spray molding, no matter how long the release period is, then the thickness of the resin film is always between 20 and 60 microns.

Experiment of release:
Initial nutrient releasing rate: 0-5%
28 days cumulative nutrient releasing rate: 25-40%
Cumulative nutrient releasing rate during nutrient release period:≥85%;