If there are problems with the maintenance and repair of objects such as pipes, arches, tower or taps, then they need to update the paintwork. It is not worth saving on this, because saving them is cheaper than repairing them.
The rate of destruction of the metal depends on the percentage of air humidity and its chemical composition. All designs made of the most modern alloys, unfortunately, are subject to corrosion. Interacting with harmful impurities, the metal surface is oxidized, further destruction occurs many times faster.
Metal losses from corrosion entail the cost of repairs, with an inevitable simple production. The main method of protection is painting metal structures with high -quality paintwork materials. How effective this work will be done on the correctness of the surface preparation.
Metal preparation technology for staining:
Delete the old enamel. The main method is the use of abrasive equipment. Thermal method is to melt the old coating, and then clean. Chemical – using solvents;
Clean and polish rusty places;
Pay special attention to joints and welds;
Twist sharp corners;
Disable, wash and degrease;
Apply a primer.
The primer is the most important stage of preparation, the degree of adhesion of the paintwork with the surface depends on its quality. Make it in two stages. The first layer is the main one, it is a little thicker than the subsequent ones and it should not have the Subtecs. Depending on the complexity and area of the elements, application occurs manually or special units.
Painting is carried out in different ways, for example, in the manufacture of a design in production. It happens that the details are only primed before packaging and sending to the assembly site. Then the color occurs after installation and installation. Metal structures are complex configuration and different heights.
Industrial climbers are engaged in high -rise work, the area of activity of which is not only waterproofing of the roof with liquid rubber, but also painting pipes, towers, bridges, cranes. They carry out repair work, installation and dismantling of the object.
The painting of metal and alloys has its subtleties, for example, will not bring the expected result to staining a cold surface. The enamel will lie unevenly, swelling and “orange peel” can form, then abroad can be possible.
Recently, an effective way to combat corrosion has been spread – an inorganic zinc coating. These are acrylic or polyurethane compounds containing metal zinc. As a priming, it is used for parts in extreme weather conditions and salt water.
How to extend life to metal structures
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