Page 24: of Maritime Reporter Magazine (May 1984)

Marine coatings & corrosion control

Manufacturers and suppliers of marine coatings and other corro- sion-prevention measures con- tinue to improve their products and services. In the important area of reducing fuel consumption, a new generation of self-polishing, antifouling hull coatings, and im- proved methods of underwater hull cleaning have been introduced.

New high-performance epoxy and polyurethane coating systems are now available that provide supe- rior protection for tank interiors, decks, and other areas. These are but a few of the many new prod- ucts developed to fight the multi- million-dollar problem of corrosion in the marine environment.

The editors of MR/EN asked the manufacturers of coatings and other corrosion-control products to tell us about their latest develop- ments in products and services.

The review that follows is based on replies that we had received up to press time.

FOR MORE INFORMATION

If you wish to receive additional information on any particular products in the following review, circle the corresponding reader service card number(s) on the reader service card in the back of this issue.

If you wish to receive informa- tion from all the manufacturers and suppliers of marine coatings and corrosion control equipment included in this review,

Circle 20 on Reader Service Card

AMERICAN ABRASIVE

Circle 21 on Reader Service Card

American Abrasive Metals of Ir- vington, N.J., manufactures Epoxo, a safety coating that provides sure- footed, non-slip, long-lasting trac- tion. Originally developed for use by the U.S. Navy, Epoxo has been used on the flight decks of all air- craft carriers since 1962. It pro- vides vital, non-skid safety for hel- icopter landing pads on offshore rigs. The safety coating is also suitable for use on ramps, pas- sageways, engine rooms, equip- ment storage rooms, and shop areas—wherever slippery surfaces exist.

Epoxo's tough epoxy binder re- sists gouging, impact, and chip- ping. It locks in the coating's near diamond-hard abrasive granules, preventing them from being loos- ened or kicked out. Epoxo is said to maintain its highly effective non-slip properties five times longer than sand and paint.

It is unaffected by seawater, oil, gasoline, grease, and chemicals, and can be rolled, troweled, or sprayed on. A two-man team can roll up to 1,000 square feet per hour. Epoxo is available in a vari- ety of colors and in 1- and 5-gallon containers.

AMERON

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Ameron Protective Coatings Di- vision of Brea, Calif., provides a full line of high-performance ma- rine primers and coatings devel- oped and tested in marine re- search laboratories worldwide.

They effectively protect vessels from corrosion and from animal and plant growths (bottoms) under dynamic and static conditions.

Products introduced recently in- clude: Amercoat® 2438, an abla- tive antifoulant; Amercoat 2161 and 2162, the most recent inor- ganic antifoulants and a bold ad- vance into a new technology; and

Amercoat 346, a high-performance tank lining for marine chemical carriers.

Amerlock®/400 was introduced in 1983. This is a new, high-solids, self-priming topcoat specifically developed for the maintenance of steel surfaces. According to Dr.

Raymond Foscante, technical di- rector of the Ameron Protective

Coatings Division, "Years of com- pany research and development have culminated in the Amerlock concept whereby the advantages of epoxy resin chemistry can be fully realized in a coating composition that facilitates one-coat, high-build application. The formulation is not only designed to maximize corro- sion protection where surface preparation is rigorous, but also to provide extended performance on minimally prepared surfaces."

Ameron introduced the inor- ganic primer Dimetcote® to the marine industry 40 years ago. To- day, its revolutionary protection of steel surfaces in corrosive environ- ments continues with a variety of formulations available to suit a wide range of corrosion-resistant marine applications.

Ameron continues to expand its international network of qualified marine representatives, worldwide manufacturing operations, and warehousing facilities. Most re- cently, the Sam Hua Paint Indus- trial Company, Ltd., Republic of

Korea, joined the list of licensed coatings manufacturers, and the

Ameron-affiliated company, Oasis-

Ameron, Ltd., began production on the Gulf Coast of Saudi Arabia in 1983. Fifty countries have Ameron representatives supporting the marine coatings industry.

ARNESSEN

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The Arnessen Corporation's

Corrosion Dynamics Division of

Roselle, N.J., provides a complete line of heavy-duty descaling and high-pressure air/water cleaning devices for removal of rust, scale, and old paint from ships, barges, offshore rigs, storage tanks, and other structures.

Among the quality tools and equipment offered by Arnessen are chipping hammers, deck scal- ing machines, needle scalers, and water/air cleaning machines.

The company's SSS high-pres- sure water cleaning system solves the problem of cleaning the holds of both large and small bulk car- riers and similar vessels, as well as the insides of land-based steel storage tanks and other interiors.

The system is based on the use of compressed air to increase the speed and throw of a water jet. It is simply connected to a ship's water-on-deck line and the service air line. A new nozzle design feeds the compressed air so as not to split and spread the water column.

The Model SSS-100 Mini-Gun is small, light, and specially de- signed for deck, superstructure, and hold cleaning in ships and other enclosures where headroom does not exceed 35 feet. The Model

SSS-200 Combi-Gun is primarily intended for the hose cleaning of high holds, tall superstructures, ships' sides, etc., but is equally ef- fective for other cleaning. Its pow- erful jet and high washing effi- ciency make prior sweeping unnecessary. Hot water can be used to speed removal of greasy deposits and stubborn dirt.

ATLANTIC SANDBLASTING

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Atlantic Sandblasting and Coat- ings, Inc. of Tampa, Fla., has been in business for more than 25 years, and is the largest marine sand- blasting and coating company per- forming internal tank coating. Last year numerous ships, including the aircraft carrier USS Nimitz, were sandblasted to SA 2% or SA 3 standard and coated with inor- ganic zincs, epoxies, phenolines, and chlorinated rubbers. On all systems Atlantic applies a stripe coat to all rat holes, lightening holes, edges, etc. This coat insures adequate mil thickness and added protection to hard-to-reach areas.

Atlantic uses suspended cable type, expanded metal staging. This allows complete ventilation, better illumination and visibility, which insures uniform coating applica- tion. This type of staging also pro- vides complete protection of blasted surfaces by allowing the de-humi- dified air to reach all surfaces.

By varying the blasting abra- sive and pressures to suit the con- dition of the steel, coupled with pre-cooled and dried compressed air, de-humidification and dust- collection equipment, Atlantic achieves the optimum quality in surface preparation.

Atlantic's Tampa facility has been operational for more than IVi years, and offers 2,000 feet of ber- thing at a 26-foot draft; 3,000 am- peres of 440/480-volt, 60-cycle ac electric power; and complete water, air, and sewage services. During this time the facility has serviced more than 50 vessels in Tampa for lay-up, sandblasting and coating, and topside ship repair.

Increased productivity at the

Tampa facility enables Atlantic to perform sandblasting and coating work, including all associated ser- vices, at an approximate savings of $1.00 per square foot less than prices offered by ship repair facili- ties. These savings are passed di- rectly to the owners.

Atlantic maintains that in the more than 25 years of operation it has never had a coating failure nor has it ever failed to meet a de- livery schedule. (continued on page 28) 26 Maritime Reporter/Engineering News