Combat DCOIT30 Marine Antifouling Agent

General

COMBAT DCOIT30 marine antifouling agent is a rapidly biodegradable settlement inhibitor, developed by Combat Technology (Dalian) Co., Ltd for the new generation of environmentally acceptable marine antifouling paints for ships and marine structures.

Physical Properties

The following are typical properties of COMBAT DCOIT30; they are not to be considered product specifications.

Appearance ............................................. .... .................................... ................ clear, yellowish liquid

Flashpoint (closed cup) .................................................................................   28°C (solvent)

Vapor pressure ........................................................................ ................. ...   5.0 mmHg at 16°C

Boiling point ......................................................................................................... 138-144°C

Melting or freezing point ....................................................................................... -3°C

Density at 25°C.....................................................................................................   0.94 g/ml

Viscosity (Brookfield) at 25°C ............................................................................... 1.3 mPa.s

Color, Gardner (VCS) ...........................................................................  ................ 3

Special Features and Benefits

•  Highly effective antifouling agent against bacterial slime, algae, barnacles, tubeworms, hydroids, bryozoa, tunicates and diatoms

•  Free from heavy metals

•  Excellent long-term efficacy

•  Stable in all major types of marine coating systems

•  Global environmental acceptance and compatibility

Key Environmental Characteristics

•  Rapid degradation of the antifouling agent in the environment

•  Rapid environmental partitioning, resulting in a limited bioavailability to non-target organisms

•  Acceptable risk to non-target organism at concentrations presents in the environment

•  Minimal bioaccumulation of toxicologically significant compounds

•  Non-hazardous environmental concentrations at recommended use levels

Product Stability Performance Benefits

COMBAT DCOIT30 marine antifouling agent is a 30% solution of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) in mixed xylenes COMBAT DCOIT30 is stable for at least two years at 22-25°C and 6 months at 40°C.

Performance Benefits

Fouling of ships by marine organisms (barnacles, seaweed, algae) is a phenomenon, which, if not prevented proves costly to the ship operators, because of the increased fuel consumption necessary to overcome the drag, and detrimental to the environment, because of the effects (global warming, acid rain) of the extra fuel consumed.

COMBAT DCOIT30 is highly effective at controlling a wide range of fouling organisms while having an acceptable environmental risk at recommended use concentrations. COMBAT DCOIT30 works by interfering with the microorganism settlement process thus preventing the initial colonization of the painted surface. It has a broad-spectrum activity against bacterial slime, algae, barnacles, tubeworms, hydroids, Bryozoa, tunicates and diatoms.

Use of COMBAT DCOIT30 containing paints prevents the fouling of treated surfaces and eliminates the associated costs of increased fuel usage and more frequent dry docking for repainting.

Recommended Use Rates

COMBAT DCOIT30 Antifouling Agent is highly effective at controlling a wide range of fouling organisms while having an acceptable environmental risk at recommended use concentrations. COMBAT DCOIT30 Antifouling Agent has a very broad spectrum of activity and when used in combination with cuprous oxide, it provides an excellent, cost-effective system, giving protection against all types of fouling organisms. Under normal use patterns concentrations of 3-10% of COMBAT DCOIT30 Antifouling Agent (as sold, 1-3% in active ingredient) are sufficient in most applications.

Applications/Directions for use

COMBAT DCOIT30 Antifouling Agent can be used in all types of Antifouling Paints such as:

self-polishing antifouling paints as well as soluble or insoluble matrix paints.

COMBAT DCOIT30 Antifouling Agent can be applied to:

•  Ship hulls (building and maintenance/repair)

•  Commercial vessels and super yachts

•  Buoys and other offshore structures

COMBAT DCOIT30 Antifouling Agent is recommended for use in:

•  Marine (deep sea) and brackish/Estuarine

•  Commercial harbors, shipping lanes, open sea

Conditions of Application: professional and industrial users only

•  No use by the general public in Do-It-Yourself applications

•  Application by airless spraying and by brushing/rolling

•  Removal by high pressure water jet and blasting

Storage, Handling and Disposal

Since antimicrobial products are, by definition, biologically active, they invariably have the potential to induce toxicological effects in humans. It is, therefore, essential to take precautions to prevent skin or eye contact, ingestion or direct inhalation of such products. Indeed, the procedures used for handling microbicide solutions will be very similar to those necessary for the use of concentrated acids and alkalis.

On those limited occasions where personnel are required to handle COMBAT DCOIT30 Antifouling Agent as received, they should always wear appropriate protective clothing. This will include a rubber apron or impervious jacket with apron, suitable impervious, chemical resistant, full length gloves and footwear. Protective chemical splash goggles should also be worn. In areas where there is poor ventilation it is recommended that for the commercial handling of COMBAT DCOIT30 Antifouling Agent, as supplied, respiratory protection should be employed using a respirator which incorporates a charcoal cartridge for the adsorption of organic vapours (associated with the solvent in COMBAT DCOIT30 Antifouling Agent).

Special care should be taken to avoid contamination of surfaces or materials that may later be handled by unprotected personnel (for example door handles and taps). Should such incidental contamination take place then decontamination of the affected surfaces should be carried out.

After working with COMBAT DCOIT30 Antifouling Agent, personnel should wash thoroughly with soap and water. These recommendations are especially applicable before eating, drinking or smoking. All clothing that may have been contaminated with COMBAT DCOIT30 Antifouling Agent should be laundered in hot water with detergent and bleach before it is used again.

Suitable materials for contact with COMBAT DCOIT30 Antifouling Agent

When setting up handling equipment for use with COMBAT DCOIT30 Antifouling Agent, any of the following materials may be used for piping, tank linings, fittings and instruments, since all have been found to be compatible.

–  Fluorinated high-density polyethylene

–  Fiberglass reinforced vinyl ester resin

–  PTFE-lined steel: Glass-lined steel, Polyethylene terephthalate (PET),

COMBAT DCOIT30 Antifouling Agent should not come in contact with low density polyethylene, as it can cause softening. COMBAT DCOIT30 Antifouling Agent is corrosive to uncoated mild and stainless steel and consequently should not come into contact with tanks or pipes of these materials.

Combat Technology (Dalian) Co., Ltd has conducted Risk Assessment studies on antifouling paint application and has established the following appropriate Risk Management Practices which should be carefully followed.

•  When handling COMBAT DCOIT30 Antifouling Agent as received, follow instructions on the label and SDS

•  Avoid skin contact with antifouling paint containing typical use concentrations of

COMBAT DCOIT30 Antifouling Agent

•  Personnel handling formulated products that contain COMBAT DCOIT30 Antifouling Agent

should use protective clothing detailed below:

 –  cotton or disposable coverall suit with snug-fitting wrists, neck and ankles

 –  rubber or other chemical resistant boots

 –  solvent resistant synthetic rubber gloves (nitrile rubber or neoprene types). These gloves should be capable of covering the wrist

– splash goggles

Additionally, the following protective clothing is recommended to be worn by those people spray-applying antifouling paints containing COMBAT DCOIT30 Antifouling Agent to ships in drydock.

–  head covering which will cover all exposed skin including lower chin, cheeks and forehead

Goggles and head covering could alternatively be replaced by an air feed hood.

It is recommended that if disposable items of clothing are used then they should he discarded after use and that new articles be used when new spraying work is begun. Clothing requirements are constantly being reviewed and these may become less stringent as more data is gathered.

COMBAT DCOIT30 Antifouling Agent has good thermal stability. It is however recommended that it is kept in an area approved for the storage of inflammable industrial chemicals, with containers stored upright in a well ventilated area and not exposed to extremes of temperature. Storage conditions should be in conformance with applicable legal, fire and insurance regulations.

COMBAT DCOIT30 Antifouling Agent is supplied in 200 kg drums.

Safety Data Sheets

Combat Technology (Dalian) Co., Ltd Safety Data Sheets (SDS) contain pertinent information that you may need to protect your employees and customers against any known health or safety hazards associated with our products.