Clean the repaired elements from dirt, rust and scale with abrasive material. Degrease the surface with acetone or any other compound that removes traces of oil, dry. Thoroughly mix the compound until a homogeneous consistency is formed. Apply with a spatula to the repair site in an even layer.
For cracks or holes smaller than 8 mm, the thickness of the compound layer should be about 6 mm and go beyond the edge of the crack (hole) at least 6 mm on each side. In cracks, it is desirable to relieve stress by drilling holes with a diameter of 3 mm in the corners.
After 8-10 minutes after application, the compound on the repaired area should be smoothed out with effort. To sustain a covering, without exposing to heating, within 6 hours. After this time, warm up the part to the operating temperature (at least 150°C) for 15-20 minutes.
If there are defects with a size of more than 8 mm, lay the compound in two layers, lay a patch of fiberglass, basalt or metal mesh between the layers.
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