Cataphoresis Coating System

  Cathodic electrocoating is an extremely economical and environmentally friendly painting method and one of the finest technologies for surface treatment of metal products. It is used primarily for protection of steel, galvanized and aluminium components. As a single-coat surface primer or as a topcoat. Cathodic electrocoating provides a significant increase in performance and durability for the product range. Main application areas include: automotive industry (automobiles, motorcycles, bicycles); agricultural and construction machinery; household appliances (washing machines, refrigerators); radiators, air conditioning units, electrical equipment, metal furniture, building components, etc. Principle The object to be coated is connected as a cathode in a direct current field of the electrolyte (conductive paint solution) and attracts cations from the paint. Electrophoretic filter cells - EFC (flat, semicircular, tubular) are connected as anodes and are used to maintain an equilibrium concentration in the paint bath. As the coating thickness increases, layer resistance also increases. This applies across the entire surface, for example at corner edges. Thickness generally ranges between 15 and 45 μm. The uncovered coating must be polymerized in a curing oven at temperatures between 160°C and 180°C. Basic requirements for the product • Must be conductive, • Must be submersible, • Must be temperature resistant to approximately 180°C. Advantages The main advantages are: • Minimum environmental waste due to low solvent content (0.5-2%), • Minimum paint loss due to closed-loop paint material (99.9% paint efficiency), • Minimum emissions, minimum solid and waste water, • High corrosion resistance of coating (approximately 25 μm / 1,000 hours in salt chamber), • High adhesion and mechanical strength of coating, • Uniform coating thickness across the entire surface, including hard-to-reach areas and corner edges, • Automatic and objective thickness control, pH monitoring, • Fast process (approximately 180s), simple repeatability, • Easy automation and process control, • Low labour intensity and low demands on service personnel, paint does not drip or run, • Possibility of topcoating with different lacquers, • Safety - no fire or explosion hazards or special precautions required. MEGA-TEC - Partner for E-COAT, EFC cell manufacturer Czech company MEGA-TEC manufactures complete paint shops, particularly electrocoating lines (E-COAT), as well as powder and liquid coating lines or their sub-products. As Europe's only electrocoating membrane manufacturer and worldwide manufacturer of all types of electrocoating cells, with over 30 years of E-Coat experience, we can provide the best solution tailored exactly to your needs. We offer comprehensive services including warranty and after-sales service, line inspections and optimization or consolidation. Initial deliveries were made in the 1980s and since then we have satisfied many customers, particularly from the automotive industry. With our Turkish partner Serin Kataforez Sistemleri and their experience, our facilities are prepared to develop a complete specialized technical solution for electrophoretic coating systems. For more information, please contact us: Author: Daniel Jandac / E-coat Sales Manager / MEGA-TEC s.r.o. Translator: Bülent Serin / General Manager / Serin Arıtma Sistemleri