Urea dispensers use DEF-compatible materials such as stainless steel, high-density polyethylene (HDPE), and specialized elastomers for seals and gaskets. These materials resist corrosion caused by the mildly alkaline properties of DEF.
All components in contact with DEF, including hoses, pumps, and nozzles, are designed to prevent chemical reactions that could reduce dispenser lifespan or contaminate fluid.
Using corrosion-resistant materials ensures durability, reduces maintenance, and maintains consistent performance over the dispenser’s operational life.