Marine coating

There are several categories of marine coatings that are used to protect the sxxrface of a ship from the aggressive marine environment 

General areas of a ship include (1) underwater hull, (2)superstructures and freeboard, 

Coating types Average usage in U.S. shipyards, % Average VOC content, g/L (Ib/gal) Average HAP content, g/L (Ib/gal)  

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Manne Marine algae Marine apatites Marine applications Marine coatings Marine equipment Marine oil (menhaden)... 

Silicone resins with high phenyl contents may be used with medium or short oil alkyds as blends in air-dried or baked coatings to improve heat or weather resistance the alkyd component contributes to adhesion and flexibiUty. AppHcations include insulation varnishes, heat-resistant paints, and marine coatings. 

Uralkyds have superior adhesion, hardness, abrasion resistance, durabiHty, and chemical resistance to the unmodified alkyds. They find appHcations in wood floor finishes, marine coatings, metal primers, and maintenance paints. 

Heavy-Duty Maintenance and Marine Coatings. Heavy-duty maintenance coatings ate appHed to bridges, off-shore drilling tigs. 

H. R. Bleile and S. Rodgers, Marine Coatings, Eederation of Societies for Coatings Technology, Blue Bell, Pa., 1989. 

Surface preparation, always important in obtaining optimal coatings performance, is critical for marine coatings (see Metal surface treatments). Surface preparation usually comprises about half of the total coating costs, and if inadequate may be responsible for early coating failure. Proper surface preparation includes cleaning to remove contaminants and roughening the surface to faciUtate adhesion. 

Marine coatings Organic coatings for corrosion control Paint acrylic ester polymers, 7 388-389 adhesion, 7 90-92 advanced ceramic, 7 704-705 alkanolamines from olefin oxides and ammonia, 2 136 alkyd resins, 2.T67-168 amino acid resin applications, 2 635—637 anticorrosion, 25 134 anticorrosion metallic, 7 713-714... 

Marine applications, high performance fibers in, 13 395 Marine biofouling, 7 151-152 Marine borers, effect on wood, 26 353 Marine coatings, 7 144 7 192-206 10 442-444... 

Bertram, V. Past, present and prospects of antifouling methods. 32nd WEGEMT School on Marine Coatings, pp.85-97. Plymouth, UK, 10-14 July (2000). 

Schneider, I., Allerman, K. Poster presented at workshop "Environmentally Friendly Marine Coatings",... 

A further important application of these pigments is in paints. The natural red iron oxides are also used in primers for steel structures and cars, for marine coatings and for anti-fouling paints. In the USA, the metallic browns are used for these purposes. The level of soluble salts in the latter pigments is low and this reduces corrosion problems. The metallic browns are also used in heat resistant enamels. 

Epoxy c Ketone, ethers, esters, toluene, xylene Marine coatings, enamels, containers... 

Chlorinated rubber NC Aromatic hydrocarbons, chlorinated hydrocarbons, esters, ketones Alkaline substrates, marine coating... 

Natural iron oxide pigments are mostly used as inexpensive marine coatings or in coatings with a glue, oil, or lime base. They are also employed to color cement, artificial stone, and wallpaper. Ocher and sienna pigments are used in the production of crayons, drawing pastels, and chalks [3.5]. 

Layman, P.L., 1995. Marine coatings industry adopts new technologies for shifting markets. Chem. Eng. News 73, 23-25. 

Noise resistance monitoring has been used to track the long-term degradation of marine coatings under laboratory exposures (153), and remotely under natural exposure conditions (154). In studies of epoxy and alkyd coatings on steel... 

Major polymer applications silicon wafer carriers, pump, pipes, fittings, filtration, tubing, column packing, marine coatings, wear resistant products, coating for hostile environments, automotive weather seals for doors and windows... 

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