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  • About color coated steel coil /prepainted steel coil structure

    About color coated steel coil /prepainted steel coil structure

    Color coated coil is composed of top coat, primer, coating, substrate and back paint. Finish paint: shield the sun, prevent ultraviolet damage to the coating; When the finish reaches the specified thickness, it can form a dense shielding film, reducing the permeability of water and oxygen. Primer...
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  • The current market is volatile, with ups and downs that are hard to fathom.

    The current market is volatile, with ups and downs that are hard to fathom.

    Let’s talk about the basic situation of the market from three aspects today. 1. First of all, we look at the supply side, the current steel inventories are in a high state, guaranteed cash flow is still mills a top priority, steel mills and coking plant are now at a loss of coking coal pric...
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  • Matt wrinkle steel coil / prepainted steel coil price trent next week

    Matt wrinkle steel coil / prepainted steel coil price trent next week

    The current market trend is a shock down. Perhaps in the process of shock down there will be a range of price rebound phenomenon, these are normal. We think there are two main reasons for the price drop: 1. In the current epidemic situation, demand cannot be opened. 2. Raw materials follow declin...
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  • Forecast prepainted galvanzied steel coil price trend on next week

    Forecast prepainted galvanzied steel coil price trend on next week

    Entering the market in May, the price has dropped substantially. The reasons for the decline are: 1. The impact of the epidemic in China. On May 5, the Executive meeting of The State Council pointed out that the general policy of dynamic elimination of the number of COVID-19 cases will not be wav...
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  • Forecast china steel coil price trent next week

    Forecast china steel coil price trent next week

    Steel prices are expected to fluctuate down next week. There are three main reasons for the shock drop: 1. The price of raw materials drops. Iron ore, coke prices have broken through the early range of shocks of a lower edge, showing a shock down trend. At present, international bulk commodities ...
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  • The use environment of color-coated steel coil

    The use environment of color-coated steel coil

    1. Environmental factors of corrosion Latitude and longitude, temperature, humidity, total radiation (uv intensity, sunshine duration), rainfall, pH value, wind speed, wind direction, corrosive sediment (C1, SO2). 2. The influence of sunlight Sunlight is electromagnetic wave, according to the ene...
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  • Thickness of paint coating

    Thickness of paint coating

    From a microscopic point of view, there are many pinholes in the coating, and the size of the pinholes is enough to allow external corrosive media (water, oxygen, chloride ions, etc.) to penetrate into the substrate, and u nder a certain relative humidity, a filamentous corrosion phenomenon occur...
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  • Factors affecting the use of PPGI steel coil

    Factors affecting the use of PPGI steel coil

    The anticorrosive effect of building color coating products is the combination of coating, pretreatment film and coating (primer, top paint and back paint), which directly affects its service life. From the anticorrosion mechanism of color coating, organic coating is a kind of isolation material,...
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