e-Degrease Plus Aqueous Degreaser Heavy Duty is an ideal product for use on boats, cranes, oil rigs and heavy machinery, where heavy oil and grease contamination can occur. When diluted (in sea or fresh water) it is ideal for general rig cleaning. It is an Industrial strength degreaser that can be diluted with fresh or seawater. Safe on painted Surfaces. Biodegradable. CEFAS approved degreaser.