A: The primary difference lies in the chemical concentration. Standard automotive AdBlue® (AUS 32) contains 32.5% urea, whereas Marine AUS 40 contains a significantly denser 40% urea concentration. Large marine vessels use AUS 40 because their massive Selective Catalytic Reduction (SCR) engines operate at higher outputs, and the denser 40% mix allows ships to optimize physical onboard storage space while effectively neutralizing heavy NOx emissions.

A: Yes, absolutely. Our Marine AUS 40 is manufactured to strict chemical purity specifications in accordance with the international ISO 18611 standard (specifically ISO 18611-1/-2/-3 for marine applications). It is fully compliant with MARPOL Annex VI regulations, allowing commercial fleets, cargo liners, and industrial vessels to meet global Tier III NOx emission limits seamlessly.

A: Because marine operations require large fluid capacities, we offer highly flexible bulk delivery methods. We can coordinate direct high-capacity road tanker bunkering straight to your vessel at major South African ports, or supply via multiple linked 1,000L IBC totes depending on your vessel’s specific intake layout and port restrictions.

A: Like standard urea solutions, AUS 40 is corrosive to non-ferrous metals like copper, zinc, lead, and mild steel. All onboard storage tanks, bunkering lines, seals, and transfer pumps must be constructed exclusively out of chemically stable materials, such as high-density polyethylene (HDPE), polypropylene, or high-grade stainless steel (like 316L) to prevent structural damage and fluid contamination.