Compass Blue® Marine DEF is an ultrapure 40% urea solution specifically designed for marine diesel engines equipped with SCR (Selective Catalytic Reduction) systems, as well as other units and equipment that meet DEF AUS40 specifications.

Compass Blue® DEF (Diesel Exhaust Fluid) is essential for diesel units with SCR systems. In conjunction with the SCR system, Compass Blue® helps reduce harmful contaminants in engine emissions. As a vital component of the emission system, Compass Blue® enhances the efficiency of the exhaust process.

By injecting small amounts of Compass Blue® into your unit’s emission system, nitrogen oxides are converted into nitrogen and water, reducing harmful emissions by up to 95%.

Compass Blue® Marine DEF
> 40% Urea (AUS40)

Compass Blue® Marine DEF meets stringent purity standards to ensure the proper functioning of your SCR system.

These standards guarantee that the DEF used in any SCR-equipped diesel unit complies with the purity requirements set by engine manufacturers, supports effective emission reduction, and helps maintain the performance of the emission control system.

Comply with Official Regulations and Safeguard your Engine with Compass Blue® Marine DEF

Our product is certified by the American Petroleum Institute of the United States.

Compass Blue® is manufactured under the ISO 22241-1:2006 International Standard Quality Requirements. This standard establishes the quality characteristics of the urea’s liquid solution (Aqueous Urea Solution AUS32) as a NOx reduction agent.

Our manufacturing and double filtration process guarantees a product of maximum purity, meeting and exceeding market standards.

All our measuring equipment is certified by Techmaster®, ensuring precise calibration and optimal performance.

Compass Blue® complies with the DIN 70070:2005 specifications, which define the quality characteristics of the reduction agent required for the proper operation of SCR systems in diesel engines.

Our product reduces harmful nitrogen oxide (NOx) emissions by 95%, converting exhaust gases into harmless nitrogen and water.

Designed to Work with Any Type of Diesel Unit with an SCR System

Compass Blue® Marine DEF is compatible with all types of marine transport units, including boats, private yachts, cargo and cruise ships, as well as industrial machinery. The only requirement is that the unit must be diesel-powered and equipped with an SCR exhaust system.