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(Coating Formulation) Study of Corrosion Resistance For Blends of FEVE Fluoropolymer and Acrylic Re

We studied the corrosion resistance for topcoat systems made using a solvent-borne 2K fluoroethylene vinyl ether (FEVE) polyol blended with different acrylic resins. The topcoats were applied over primed steel substrates. The primers consisted of zinc-rich (for 2-coat) and zinc-rich/epoxy mid-coat (for 3-coat) systems. Standard, salt fog (ASTM B 117), cyclic Prohesion (ASTM G85 Annex A5) and EIS (electrochemical impedance spectroscopy) test methods were used to determine corrosion resistance. The blended system performance was compared against FEVE, acrylic, polyurethane, and polysiloxanes controls.

Product Number: 45-COAT_DEC21
Author: Donald C. Lawson III
Publication Date: 2021
Industry: Coatings
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We studied the corrosion resistance for topcoat systems made using a solvent-borne 2K fluoroethylene vinyl ether (FEVE) polyol blended with different acrylic resins. The topcoats were applied over primed steel substrates. The primers consisted of zinc-rich (for 2-coat) and zinc-rich/epoxy mid-coat (for 3-coat) systems. Standard, salt fog (ASTM B 117), cyclic Prohesion (ASTM G85 Annex A5) and EIS (electrochemical impedance spectroscopy) test methods were used to determine corrosion resistance. The blended system performance was compared against FEVE, acrylic, polyurethane, and polysiloxanes controls.

We studied the corrosion resistance for topcoat systems made using a solvent-borne 2K fluoroethylene vinyl ether (FEVE) polyol blended with different acrylic resins. The topcoats were applied over primed steel substrates. The primers consisted of zinc-rich (for 2-coat) and zinc-rich/epoxy mid-coat (for 3-coat) systems. Standard, salt fog (ASTM B 117), cyclic Prohesion (ASTM G85 Annex A5) and EIS (electrochemical impedance spectroscopy) test methods were used to determine corrosion resistance. The blended system performance was compared against FEVE, acrylic, polyurethane, and polysiloxanes controls.

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