DEF Urea Solution
CO(NH₂)₂ — Diesel Exhaust Fluid
Diesel Exhaust Fluid (DEF) is a high-purity urea solution used in Selective Catalytic Reduction (SCR) systems to reduce harmful NOx emissions from diesel engines. Available in three concentrations to meet your specific application requirements — from standard automotive use to industrial processes.
Select Concentration
Choose a concentration to view full specifications, applications, and documentation.
32.5% DEF (Standard)
The industry-standard DEF concentration meeting ISO 22241 and API requirements. Used in all on-road and off-road SCR systems for NOx emission reduction.
40% DEF (High Concentration)
Higher concentration urea solution for industrial and specialized applications requiring more urea per volume. Ideal for industrial SCR systems and chemical processes.
50% DEF (Concentrated)
Concentrated 50% urea solution for industrial applications where higher concentrations are required. Reduced shipping volume and storage requirements.
Safety & Handling
DEF is a non-hazardous, non-toxic, and non-flammable solution. It is safe to handle with standard precautions and is transported in dedicated stainless steel or approved polyethylene containers to maintain purity. All concentrations are manufactured to meet ISO 22241 standards.