AIR. INDUSTRIAL ENVIRONMENT Air is life.
Even the purest air contains two major components that cause corrosion and decomposition. They are oxygen and water. Oxygen is an extremely powerful oxidizer. Water is a unique solvent capable of dissolving oxidation products as well as salts, acids and alkalis. How does then humankind manage to survive in this aggressive environment? What protects human beings throughout the 70 to 100 years of their lifetime? The optimal solution that nature has come up with is skin. Skin is a thin – a mere half a millimeter – layer of protein, i.e., an organic polymer. Skin is a kind of natural anticorrosion polymer coating with a complex multilayer (in other words, graded) structure, which explains its unique protective properties. But what we have to deal with is industrial environment. Apart from oxygen and water, industrial air contains numerous production-induced pollutants, such as carbon dioxide, sulfur oxides, particulate salts, fumes and aerosols of acids and alkalis, fumes of organic compounds. These pollutants are capable of facilitating oxidization and dissolution of corrosion products, destroying protective oxide films on metal surfaces and thus accelerating corrosion of all structural materials. Today these two words, “industrial environment”, warn of clear and present danger to metals and reinforced concrete structures, rails, bridges, aqueducts, gas purifying absorbers, high-speed fans, etc.
RECOMMENDED PROTECTION SCHEMES For reinforced concrete - Penetrating primer containing components that bind water and chemical pollutants (SELECTON®-022, METACOR®-02) + anticracking coating (VICOR®-755) + chemical-resistant coating (VICOR®-7050, VICOR®-593, VICOR®-700) For metals
- SELECTON®-706 ground-coat enamel - Prime coating containing protective, inhibiting and water-binding components (METACOR®-01, METACOR®-02, METACOR®-03, METACOR®-05, METACOR®-07) + chemical-resistant coat (VICOR®-700, VICOR®-793, VICOR®-7050, VICOR®-7105) METALWORK IN INDUSTRIAL ENVIRONMENTS
The SELECTON® compounds combine high weather resistance with chemical stability, thereby effectively protecting from corrosion the exposed surfaces of any metal structure or process equipment. The coatings we offer withstand spills of any aggressive liquids and exposure to aggressive aerosols and gases. Metalwork in an industrial environment (bridges, sheds, conduits, tanks) SELECTON®-706 ground-coat enamel 2 layers 350 g/m² Metalwork in an industrial environment with stray current present (contact line masts) SELECTON®-706 ground-coat enamel 2 layers 400 g/m² Metalwork in an industrial environment with stray current present (junction boxes, switch motors, chokes, transformers) SELECTON®-01 primer 1 layer 200 g/m² SELECTON®-793 enamel 1 layer 100 g/m² SELECTON®-7050 enamel 2 layers 200 g/m² REINFORCED CONCRETE STRUCTURES IN CHEMICAL ENVIRONMENTS We propose innovative solutions for the protection of reinforced concrete surfaces exposed to chemical action. They are based on selective immobilization of the contaminants implanted in the surface layer of the concrete structure, prevention of their recrystallization, and concrete hardening. Reinforced concrete structures contaminated by chemicals SELECTON®-022 penetrating primer 1 layer 200-350 g/m² SELECTON®-722 enamel 2 layers 200 g/m² Reinforced concrete structures with a degraded surface layer SELECTON®-022 penetrating primer 1 layer 350 g/m² SELECTON®-711 (elastic) enamel 1 layer 100 g/m² SELECTON®-722 enamel 2-4 layers 200-400 g/m² GAS PURIFICATION AND TRANSPORTATION EQUIPMENT Being highly chemical- and abrasion-resistant, VICOR® materials are capable of protecting equipment that may be exposed to high-speed flows of aggressive dry or humid gases containing abrasive dust. Flue-gas desulphurization adsorber METACOR®-01-DK primer 1 layer 0.04 mm 200 g/m² VICOR®-793-TRIO coating 5 layers 0.50 mm 600 g/m² VICOR®-593 enamel 5 layers 0.50 mm 600 g/m² Acetylene wet gas holder METACOR®-05-SIAL primer 1 layer 0.04 mm 200 g/m² VICOR®-793-TRIO coating 1 layer 0.08 mm 120 g/m² VICOR®-7050 enamel 1 layer 0.10 mm 150 g/m² Flue for silicofluoric acid fumes or sulfuric acid aerosols METACOR®-01-UNO primer 1 layer 0.04 mm 200 g/m² VICOR®-793-TRIO coating 5 layers 0.50 mm 600 g/m² VICOR®-700-ELAST enamel 5 layers 0.25 mm 600 g/m² Flues in electroplating plants METACOR®-01-UNO primer 1 layer 0.04 mm 200 g/m² VICOR®-793-TRIO coating 2 layers 0.20 mm 240 g/m² VICOR®-700-ELAST enamel 2 layers 0.10 mm 240 g/m² Clean air METACOR®-01-UNO primer 1 layer 0.04 mm 200 g/m² VICOR®-7050-BIO enamel 1 layer 0.08 mm 100 g/m²
Application technology - Airless or conventional spray, brush, or roll - Temperature: +5 …+35 °Ñ - Humidity: up to 80 per cent Performance Erosion resistance: Abrasive wear 0.03 mm a year under the following conditions: abrasive agent content in gas – 500 g/m³; flow velocity – 15 m/s; temperature - 70°Ñ. Adhesive strength: Initial adhesive pull off strength, at least 8 MPa/ After exposure to 5 per cent H2SO4 solution at +90°Ñ for 100 hours - at least 8 MPa Advantages of VICOR® Systems - Resistant to alkali, soda and ammonia solutions or slurry in gas purification plants when exposed to fluid and gas abrasive wear - Coating surface immune to salt or dust/oil mixture accumulation - Resistant to abnormal filling deformations and pressure surges, spot surface deformations - Resistant to aggressive impurity gases (Í2S, PH3, NH3, AsH3) - Guaranteed to contain no copper ions, which precludes formation of the explosive Cu(I) acetylide. |