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At present, modern ways to protect a varnish coating of cars have become widespread among motorists. Small particles of dirt, dust, winter reagents, minuses of car wash systems, a large number of stones on the road do not have the best effect on car cover. All operational impacts destroy the protective paintwork, after which the steel car body is no longer able to resist the effects of the environment. The body begins to rust and deteriorate. The car eventually loses its appearance, ceases to shine, becomes opaque. Reduction of adverse operational impacts on the paint coating of the car is achieved by modern methods of protection. A wide distribution in the market of automobile cosmetics was produced by protective polishes based on wax or synthetic constituents. It is connected with their small cost and ease of application. The flagship on auto market for the protection of car paint coating is armor plate. This is a protective transparent film with a thickness of approximately 100 microns, providing the maximum degree of protection. Thus, with the help of modern means of protecting paint coating, one can minimize the negative impact of the environment and prolong youth to a car.

The paper considers the development of methods for managing the reliability of single-production machines (lunar rover, rover, rolling mill, president’s car of the country, etc.). Many years of experience in the field of machine reliability allowed the leading specialists of the department of AS and DS to develop a method for managing reliability for serial and mass machines. in the case of evaluating the reliability of single-production machines, development of algorithms based on sample data and data obtained during the transition from the sample to the set of values was carried out. The resource of the parts is defined as the main parameter, which, irrespective of their purpose, form the sampled samples of units of finite volume. Given that the main parameter of the details the resource depends on the strength and loading parameters, the correlation between the strength parameters and the acting stresses (endurance limit, active stress in the dangerous section, strength increase coefficients and the coefficient of increasing the acting voltage) is used in the studies. In such conditions, the estimated resource should relate to each entity of the population or a sample from it. During the research, a parameter is defined as the minimum resource that will determine the homogeneity of the sample (the aggregate), while the main condition for ensuring the same main parameters of parts with sudden failures is the Veler-Sørensen-Kogayev formula based on the experimental initial fatigue and loading statistics . Thus, a method has been developed to ensure the reliability of single-source machines, based on the synthesis of two methods and principles for serial and single-purpose machines.

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The simplest and most reliable way to protect metal structures from corrosion are the paint coatings, which, in comparison with other protection methods, have several advantages (manufacturability, maintainability, economy, compatibility with other protection methods, etc.). The issues of experimental quality analysis of the typical anticorrosion coatings designed to protect metal structures operating under aggressive environmental conditions and industrial factors are considered. It is proposed to use such indicators as adhesion, thickness and weather resistance as the main indicators of the coatings’ quality. The methods for the experimental determination of these parameters on the laboratory samples and the construction of an integral indicator of the anti-corrosion coatings quality are proposed. On the selected typical coatings example, the experimental dependences of their quality indicators on temperature, the number of “freezing-heating” cycles, the magnitude of the shock load and the water salinity degree are analyzed. The obtained data were used to determine the weather resistance of coatings and their quality indicator, which was proposed to use as the sufficiency integral indicator. Its essence lies in the assumption that there is a border beyond which an increase in the indicator is pointless for each of the quality indicators, since it does not lead to an improvement in the coating quality and can even be harmful due to the other uncontrolled indicators’ possible deterioration.