Traditional coatings take vegetable oil and synthetic resin as the main film-forming substances, supplemented by various additives and pigments. There are 15 series and several varieties, which must be diluted with organic solvents such as toluene and xylene when used. The traditional paint film is bright, hard, water-resistant, weather-resistant, chemical-resistant and good in electrical insulation, but it is fragile, takes a long time to dry, and the low-grade paint film is prone to yellowing. Different paints are not suitable for combination because of their different properties.
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Message of auspicious wishes for solar terms in Grain Rain (1)
1, the rain in Grain Rain falls from the sky! Immortals from all wal