D.C.W.T. Powder

DIESEL COOLING WATER TREATMENT POWDER is the equivalent powder product of D.C.W.T. - N.C.. Specifically, it has been designed to apply to all marine diesel engines for the treatment of the cooling water. Furthermore, it can be applied to other cooling and heating closed re-circulating water systems in order to prevent rust and scale development.

Characteristics, Advantages & Applications

Prevents corrosion and scale formation.
Prevents acid attack.
A chromate-free product.
It is not an oil compound and does not create foaming.
Protects various metal surfaces and is compatible with non-metals.
Has a very low degree of toxicity.
Prevents scale overheating and maintains regular heat transfer.
Compatible with glycol-based antifreeze and sealing products.
Cost effective, easy to handle and apply.

Physical Properties

D.C.W.T. Powder is a Non-Chromate Nitrite powder compound with a deposit modifier, pH stabilized.

Order No	Size (in kgs)	Container
Appearance / Color	Light yellow, thick crystalline granulated powder
Specific gravity	1.1/15°C
pH (1% solution)	8.5-10
Odor	Odorless
672505	25	Plastic drum

Application and Use

A. Dosing procedure

Initially, a quantity of 8 kgs per ton of distilled or fresh water must be used.

However, correct dosing can and must be determined, after the testing of water samples, using the MARICHEM NITRITE TEST KIT. For optimum results, a nitrite concentration of 20 to 60 ppm in the cooling system is recommended.

B. Feeding Procedure

After the quantity of D.C.W.T. POWDER is determined and before the introduction of the product into the system, it must be dissolved in sufficient volume of water until the dissolution of the powder is complete.

Thereafter, feed the solution into the expansion tank or through a metering pump, these are responsible for the circulation of the solution into the cooling water system.

Moreover, the engineer has to make sure that a proper distribution of the solution is accomplished and that a protective film is created. Only then the treatment is complete.

After the application and while the cooling water system is in operation, let the solution circulate for approximately 2 hours. Then, test the Nitrite concentration in the water using the MARICHEM NITRITE TEST KIT. Repeat the testing procedure and make up with D.C.W.T. POWDER solution in order to stabilize the Nitrite concentration in the water due to losses/leakage of the system.

Approvals and Certifications

D.C.W.T. NON CHROMATE is approved by the following Engine manufacturers:

WARTSILA NSD
ALSTOM ENGINES

Safety and Handling

SAFETY	IMMEDIATE ACTIONS
HANDLING	Handle with care. Store in a dry, cool and well ventilated environment.
Eye Contact	Avoid Eye contact. Otherwise, flush with plenty of water for a few minutes. Seek medical attention.
Skin Contact	Avoid Skin contact. Otherwise, wash contaminated area thoroughly with water. Seek medical attention.
Inhalation	Avoid inhalation of vapors. Otherwise, seek fresh air source at once. Seek medical attention.
If Swallowed	Avoid ingestion. Otherwise, consume a considerable quantity of water. Do not induce vomiting. Seek medical attention.
GENERAL INSTRUCTIONS	Avoid spillage, splashing and mishandling. Precautionary measures for body protection are strongly recommended before use.

Read the Material Safety Data Sheet before using this product.

For detailed information on safety and health, please refer to Material Safety Data Sheet and/or Product Label.