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Main Classification and Storage Precautions of Prepainted Steel Coils

Color-coated steel coil, also known as color-coated steel coil, is a product obtained by baking the strip steel coated with organic coating at high temperature after continuous surface degreasing on the production line after chemical transfer coating such as phosphating. .


Generally speaking, the surface color of this kind of steel plate is brighter, and we also call this kind of steel plate as color steel plate and color-coated steel plate.


Ⅰ. Prepainted steel coils are classified according to the substrate used


prepainted steel coils are usually used as substrates for organic coated steel sheets: cold-rolled sheet, hot-dip galvanized sheet, electro-galvanized sheet, alloy sheet, galvanized aluminum sheet, electro-galvanized alloy sheet, tin-plated sheet, chrome-plated sheet, aluminum sheet, etc.


Ⅱ. Prepainted steel coils are classified by processing technology


According to different coating methods, prepainted steel coils include organic-coated steel sheets made by roller coating, spraying, powder, film coating, and printing.


Prepainted steel coils are organic-coated color-coated steel sheets prepared by different processes such as one coating, one baking, two coating and two baking, three coating and three baking, and four coating and four baking.


Color-coated steel coil pressing flower or printing processing points: It can also be subdivided into wood grain board, marble grain, leather grain, cement mortar grain and other coated steel plates.


Ⅲ. Prepainted steel coils are classified according to the type of coating


Prepainted steel coils are usually classified according to the coatings used to make organic coatings, including PVC-coated steel plates, polyester-coated steel plates, acrylic-coated steel plates, fluorocarbon-coated steel plates, and silicon-polyester-coated steel plates.


Ⅳ. Prepainted steel coils are classified according to coating properties


Prepainted steel coils are classified according to the performance characteristics of organic coatings, including high-weather-resistant coated panels, high-temperature resistant coated panels, self-extinguishing coated panels, sterilized coated panels, non-stick coated panels, fingerprint-resistant coated panels, and self-extinguished coated panels. Lubrication coated plates, etc.


Ⅴ. Prepainted steel coils are classified according to special coatings and uses


For example, organic-coated steel plates with epoxy zinc-rich coatings and cold-rolled steel plates as substrates, surface flocked steel plates and some special organic-coated cladding plates, such as wood-veneer membrane panels, sandwich panels, shock-proof panels, etc.


Ⅵ. Precautions when storing prepainted steel coils


Storage, transportation and loading and unloading are important links that affect the quality of prepainted steel coils. If the operation is improper, various defects such as scratches, embossing, corrosion, etc. may occur during storage, transportation, and loading and unloading.


1. The prepainted color coated steel coil should be stored in a clean and tidy indoor environment to avoid the erosion of various corrosive media.


2. The floor of the color-coated steel coil storage site should be flat, free of hard objects and have sufficient load-bearing capacity.


3. Horizontal steel coils should be placed on rubber pads, skids, brackets and other devices, and the strap locks should be facing upwards, and cannot be placed directly on the ground or on transportation tools.


4. In order to avoid pressure injury, steel coils are usually stored without stacking. When the steel plate is stacked and stored, the number of stacking layers should be strictly limited, and the plate package with large weight and size should be placed below.


5. The product should be stored in a dry and ventilated indoor environment, avoid open storage and storage in places prone to condensation and large temperature differences.


6. There should be enough space in the storage site for lifting equipment.


7. Reasonable arrangements should be made for the storage location of steel plates and steel coils to facilitate access, and unnecessary movement of color-coated steel plates or steel coils should be minimized.


8. It should be noted that the mechanical properties and coating properties of prepainted steel coils may change with the increase of storage time.


If you have any questions about color coated galvalume steel coil, please consult us!

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