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| New coating system protects structures in coastal areas  Cortec’s Coating Research Chemists have developed a new, high performance coating system for coastal and offshore structures with exposures to harsh marine environments. The new coating system was developed for structures in Southern Louisiana and the Gulf of Mexico that experience extreme weather cycles and hurricanes. Originally designed for use during reconstruction of partially destroyed structures, the high performance coating system offers 2 to 10 times the anti-corrosion capability of conventional paints and coatings.During the initial reconstruction and repair of a structure, the coating system utilizes a specialized surface prep CorrVerter for rusted surfaces that will go back into service. CorrVerter modifies surface rust into a hydrophobic passive layer. The product is strategically designed with a high solids water-based latex that has extremely low water vapor permeability. For high humidly and salt atmospheres, CorrVerter lays down a strong foundation against corrosive intrusion. The CorrVerter surface prep is followed by an anti-corrosion barrier primer, VpCI-396. This aromatic, moisture-cure urethane establishes a hard and flexible coating. This high solids coating sets up excellent adhesion for new steel and aluminum substrates and extremely high bonding with CorrVerter treated surfaces. The VpCI-396 primer provides a tough barrier. It allows the flexibility required for metal structures, bridges, tanks, and offshore platforms that have a high coefficient of expansion and contraction that cause ordinary paints and coatings to craze and crack. The VpCI-386 topcoat provides a thixotropic, fast drying water-based acrylic. It has been formulated as a special protectant against electrolytes and aggressive marine environments. All three components of the coating system incorporate Cortec patented VpCI technology. These specialized anti-corrosion agents form a self-healing monomolecular barrier within the system to block corrosive attack. After curing, the topcoat is thermally stable from -40°C to 204°C. It has exceptionally good anti-abrasion qualities making it suitable for steel grating walkways, decks and platforms. The topcoat offers excellent UV resistance and can be tinted as required. write your comments about the article :: © 2005 Construction News :: home page |