Research on Increasing the Durability of Paint Coatings for Agricultural Machinery

Тhe protection durability and effectiveness with paints and varnishes is largely determined by the surface preparation quality before painting. The labor-intensive work is surface preparing for applying paint and varnish coatings. The cost of surface preparing for painting can amount to 30–50 % of the painting work’s total cost, and in some cases even exceed the painting cost. Rust converters are becoming increasingly recognized in the equipment’s anti-corrosion protection practice. Their use makes it possible, in some cases, to simplify the technology of coloring, reduce labor intensity, improve working conditions, prevent environmental pollution, increase the durability of paint coatings and reduce their consumption. One of the promising types of raw materials for the development of a new rust converter is gossypol resin, which is a large-tonnage waste from the oil and fat industry. The problem of increasing the reliability and durability of structures, equipment and various equipment in the engineering industry has acquired particular relevance at the present stage of production development. For this aim, we have developed a rust converter composition based on gossypol resin. The subject of the study was the regularity and change in the process of restoration and application using a rust converter primer to increase the durability of metal structures of industrial equipment in the machine-building industry and agricultural technology. Conducting scientific research in the direction of expanding the range of rust converters to protect equipment from corrosion is an urgent and practical task. Keywords: gossypol resin, agricultural machinery, corrosion, rust converter, coatings, environment.