A study of diatomite and calcined kaoline properties in anticorrosion protective coatings

Comparison of properties of diatomite and kaoline in paints were studied in dependence on their volume concentration (PVC). Model paints were prepared containing increasing filler contents, PVC = 5% up to the critical volume concentration of the pigment (CPVC). The properties of the prepared coatings were tested by laboratory corrosion tests in both the neutral salt mist and the condensation moisture environments. The effect of diatomite and kaoline PVC on mechanical and anticorrosion protective properties of coats based on epoxide and epoxy-ester binders was studied. It was established that diatomite can be used as a filler in anticorrosion protective coatings.