Зварювальний факультет

Anti-Corossion Zinc-Free Primer for Steel

The project WeldaPrime – “Self-repairable Zinc-free Weldable Anti-corrosion Primer for the Steel protection”, sponsored by the EC FP7 Research for the benefit of SME associations (3-year projects) has started on February 1st 2014 and has the European Welding Federation as its project coordinator.

The global production of steels is in the range of 1400M tons, worth nearly €1trillion. Most of this steel is carbon or mild steel which corrodes at a high rate and although there are a significant number of anticorrosion solutions on the market, protective coating is the most widely used, thanks to its low cost and high versatility. However the inability of currently available primers to provide for good quality welding along with durable corrosion protection and reduced health hazards is a critical challenge today. In this environment, the ECFP7 Research has sponsored Project WeldaPrime, which aims at developing a zinc-free corrosion protection primer with an optimum thickness and affordable cost, offering durable corrosion protection, resistant to mechanical damage and weldable without zinc fumes.

The main purpose of the WeldaPrime project will be to:

  1. Develop an anti-corrosion primer without any zinc content that lasts at least 1 to 2 years.
  2. Develop a durable and mechanically resistant primer formulation that is able to withstand damage through handling, storage and transportation.
  3. Provide a self-repairable surface to maintain continuous protection.
  4. Ensure an optimum coating thickness that maintains durable protection and weldability
  5. Ensure the formulation includes a conductive material that allows the arc to strike; thus avoiding any need to remove the primer before fabrication.
  6. Minimise the by-products that could affect weld quality or cause porosity
  7. Eliminate unpleasant odours or fume issues in the workshop
  8. Reduce the heat generated during the thermal cutting and welding procedures in the surrounding surface area.
  9. Conform to relevant legislations
  10. Provide good compatibility in relation to adhesion of an overcoat or final protective paint post fabrication

The solution WeldaPrime is developing will address health issues due to the fact that the developed primer will be zinc free. It is well known that the inhalation of ZnO causes metal fume fever, which is known to cause fatigue, chills, fever, myalgia, cough, dyspnoea, leucocytosis, thirst, metallic taste and salivation. Zinc fumes can also have a significant impact on the respiratory tract, and may lead to lung cancer.

The project will also address economic and ecological issues by tackling a global issue related to the use of steel, which is corrosion.

The project is comprised of a transnational consortium, which includes ten partners:

  • European Federation for Welding, Joining and Cutting
  • Croatian Chamber of Economy
  • Federacion Vizcaina De Empresas Del Metal
  • The British Coatings Federation
  • Loufakis Chemicals
  • Talleres De Soldadura Y Mecanizado
  • Thomas Swan & Co
  • TWI
  • L'urederra, Fundacion Para El Desarrollo Tecnologico Y Social
  • Leibniz-Institut Fuer Neue Materialien Gemeinnuetzige

The use of the “Research for the benefit of SME associations” will ensure the WeldaPrime project will be of dedicated benefit for the European industry.

The research is funded by the European Union’s Seventh Framework Programme and managed by REA-Research Executive Agency under grant agreement no. FP7-SME-2013-605371-WeldaPrime. Information is provided as is and no guarantee or warranty is given that the information is fit for any particular purpose. The user thereof uses the information at its sole risk and liability.

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