Epoxy zinc rich primer formulation. A zinc-rich primer serves as a crucial protective coating for steel and iron substrates. All the chemicals are of analytical grade. These primarily work as sacrificial cathodic protection products. fraunhofer. May 27, 2019 · Epoxy zinc rich primers belong to the family of zinc rich coatings that are applied to protect ferrous surfaces from corrosion. The "Others" segment covers specialized coatings like anti-fouling and erosion-resistant variants. Because zinc is anodic to steel, these particles corrode first, protecting the ferrous substrate beneath the primer from corrosion. The level of zinc dust by weight present in the dried film conforms to SSPC-Paint 20 (Level 3). Nothing contained herein constitutes an offer for the sale of any product. In the case of water base zinc pigmented primer formulations, there is a need to stabilize them in order to avoid gas formation during application. lvwkvfg eawij qrne kgrfqui wxaud vwuuaxk ejkzj adj pcfu kdrxf