IMPA:
The Drew Marine DREW NBD is a neutral-based degreaser formulated for marine applications, particularly effective in removing vegetable, animal, and mineral oils and greases where alkaline cleaning is unsuitable. It's safe on most metals, including zinc, tin, aluminum, and galvanized materials, and is suitable for zinc-silicate coated tanks. DREW NBD has been evaluated and approved as a tank cleaning additive under MEPC.1/Circ.590, making it compliant with IMO regulations for use onboard chemical/product tankers. mariteam.dk+1Scribd+1
Function: Universal degreaser for removing various types of oils and greases.
Composition: Neutral pH formulation, safe for sensitive metals and coatings.
Form: Colorless liquid.
pH: Approximately 6.7.
Packaging: Available in 25-liter (PCN 1726407) and 200-liter (PCN 1726423) containers.
Neutral pH: Suitable for cleaning tanks where alkaline cleaners are not recommended.
Metal Compatibility: Safe on most metals, including zinc, tin, aluminum, and galvanized materials.
IMO Approved: Evaluated and approved under MEPC.1/Circ.590 for tank cleaning operations.
Versatile Application: Effective in various cleaning methods, including recirculation and spraying.
Prewash:
For drying or semi-drying oils, prewash with cold water.
For other oils, prewash with hot water at 60°C.
Recirculation Method:
Prepare a 2–5% solution of DREW NBD in a separate mixing tank.
Recirculate the solution through the tank using an automatic tank washing machine for 2 to 6 hours at 20–80°C.
One cleaning solution can typically clean 2 to 3 tanks, depending on soil loading.
Spray Method:
Spray undiluted DREW NBD onto the tank surfaces.
Allow it to work for at least 20 minutes.
Rinse with water at 60°C for 45 minutes.
Hydrocarbon-Free Cleaning:
After cleaning with a solvent emulsifier cleaner, use DREW NBD with fresh hot water at 70°C.
Note: Always wear appropriate personal protective equipment when handling the product.
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