Urea Automotive Grade – Complete Guide for Buyers & Importers
Urea Automotive Grade is a highly purified type of urea designed specifically for the production of AdBlue/DEF (Diesel Exhaust Fluid). Unlike regular fertilizer-grade urea, which is widely used in agriculture, automotive-grade urea is manufactured according to ISO 22241 standards, ensuring that it is free from harmful impurities such as aldehydes, biuret, and heavy metals. This purity is critical because the product is used in SCR (Selective Catalytic Reduction) systems of modern diesel engines to reduce NOx emissions and comply with Euro 4, Euro 5, and Euro 6 regulations.
As an international exporter and supplier, we provide bulk Urea Automotive Grade for companies, distributors, and industries worldwide.
What is Urea Automotive Grade?
Automotive Grade Urea is a white crystalline solid with very high purity. When dissolved in deionized water, it produces a 32.5% solution known as AdBlue (Europe) or DEF (USA), which is injected into diesel exhaust systems. The urea reacts with nitrogen oxides (NOx) and converts them into harmless nitrogen and water vapor, reducing pollution levels.
Key Features:
Purity: Minimum 99.5%
Biuret Content: < 0.3%
Form: Prilled or Granular (for solution preparation)
Standards: ISO 22241 compliant
Moisture: Maximum 0.5%
Application: Production of AdBlue / DEF solution
Urea Automotive Grade vs. Fertilizer Grade Urea
Although both products share the same base chemical (CO(NH₂)₂), their applications and purity levels are very different:
| Feature | Automotive Grade Urea | Fertilizer Grade Urea |
|---|---|---|
| Main Use | Production of AdBlue/DEF for diesel engines | Agricultural fertilizer |
| Purity | Very high (≥99.5%) | Lower (95–98%) |
| Biuret Content | < 0.3% | Up to 1% or more |
| Impurities | Free from aldehydes, heavy metals, oil residues | May contain harmful impurities |
| Standards | ISO 22241 | No automotive standards |
| End User | Automotive industry, fleet operators, refineries | Farmers, agricultural distributors |
Applications of Urea Automotive Grade
AdBlue / DEF Production – Main raw material for making the 32.5% solution.
SCR Systems – Used in trucks, buses, passenger cars, and industrial diesel engines.
Fleet Management – Essential for logistics and transportation companies complying with environmental laws.
Oil & Gas Industry – For heavy-duty engines in rigs and machinery.
Why Choose Us as Your Supplier?
As a reliable exporter of Urea Automotive Grade, we supply high-quality products directly from trusted production facilities. Our advantages include:
Consistent Quality: ISO 22241 certified, tested with COA (Certificate of Analysis).
Flexible Packaging: Bulk, jumbo bags (FIBC), 25kg bags, or customized packaging.
Global Logistics: FOB, CIF, CFR shipments to major ports worldwide.
Competitive Prices: Direct supply for importers and distributors.
B2B Service: Supporting importers, traders, and large-scale buyers with professional documentation and timely delivery.
If you are sourcing Urea Automotive Grade for AdBlue/DEF production, partnering with a reliable exporter is essential to guarantee product quality and compliance with international standards. We specialize in supplying bulk quantities of this product worldwide and provide complete B2B support for importers and distributors.

