Color coated steel sheet selection and application

The correct selection of color-coated sheets should consider the natural environment, service environment, design period, and structural characteristics of the building to select the steel type, specifications, plating, and coating that match it. Architects, project owners and processing parties consider the safety performance of buildings (impact resistance, earthquake resistance, fire resistance, wind pressure resistance, snow resistance), residential performance (waterproof, sound insulation, thermal insulation), durability (pollution resistance, durability) , Appearance retention), economy (low cost, easy processing, easy maintenance, easy replacement), etc. For color-coated steel plate suppliers, these properties as steel mills should be converted into color-coated steel sheet performance and guaranteed. The performance requirements of color-coated steel sheet mainly include the mechanical properties of the material (tensile strength, yield strength, elongation), coating properties (coating type, coating thickness and coating adhesion) and coating properties (coating variety, color, gloss, durability) Performance, processability, etc.). Among them, wind resistance, impact resistance, snow resistance, earthquake resistance, etc. are all related to the mechanical properties of the material. Of course, it is also related to the waveform of the color profiled steel sheet, the thickness, span, and purlin of the steel sheet. The profiled steel sheet design can not only meet the safety factor of the building but also reduce the project cost. The durability, processing performance and appearance retention of the material are mostly determined by the durability of the coating and plating.

The types of coatings currently used for color-coated steel sheets are polyester coatings (PE), fluorocarbon coatings (PVDF), silicon-modified coatings (SMP), and high weather-resistant coatings (HDP).

At present, there are still many functional color coated steel plates, such as antibacterial color coating, antistatic color coating, thermal insulation color coating, self-cleaning color plate, etc. The development of these products is to meet the special needs of users, but sometimes can not take into account other performance of color coated steel sheet products. Therefore, users must be clear about their true needs when selecting functional color coated steel sheets.