Common knowledge of coating: what's the difference between cold spraying zinc paint and hot galvanizing

Core tip: the design purpose of cold spraying zinc paint is to replace the traditional hot galvanizing process, and it is also used as the protective coating of steel structure Is there any difference between the two? In fact, as long as we have a certain understanding of the two processes, we can have a good answer One is paint spraying, the other is hot-dip galvanizing protection Let's first understand the characteristics of the two processes Technology of cold spraying zinc paint The dry film of the cold spraying zinc paint coating contains a large amount of zinc powder, up to 96%, which has a very good cathodic protection effect on the steel surface and produces electrochemical corrosion protection Cold spray Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Home of coatings: the design purpose of cold spraying zinc paint is to replace the traditional hot galvanizing process, and it is also used as the protective coating of steel structure Is there any difference between the two? In fact, as long as we have a certain understanding of the two processes, we can have a good answer One is paint spraying, the other is hot-dip galvanizing protection Let's first understand the characteristics of the two processes Cold spraying zinc paint technology the dry film of cold spraying zinc paint coating contains a lot of zinc powder, up to 96%, which has a very good cathodic protection effect on the surface of steel and produces electrochemical corrosion protection Cold spraying zinc paint generally needs supporting coating, such as sealing paint, intermediate paint, anticorrosive finish, etc., which depends on the specific coating design In terms of construction technology, it is only necessary to operate according to the normal paint spraying method High pressure airless spraying is recommended to achieve the specified film thickness A complete painting system can protect the steel structure for up to 20 years Hot dip galvanizing includes hot dip galvanizing and cold dip galvanizing Hot dip galvanizing is widely used and has better anticorrosion effect Hot galvanizing is to immerse the derusted steel into the molten zinc at 500 ℃ so that the surface of the steel is attached with a zinc layer Compared with paint spraying, hot-dip galvanizing process is more complex, including pickling, washing, adding auxiliary plating solution, drying, hanging plating, cooling, chemical cleaning, polishing, hot-dip galvanizing The comparison between the two is also anti-corrosion for steel Why should we choose the best spraying method of cold spraying zinc paint? With the national requirements of energy conservation and environmental protection, more and more people pay attention to environmental protection Hot dip galvanizing process is usually accompanied by high pollution, industrial waste gas, industrial waste water, which has a great impact on the environment and human health Under the advocacy of environmental protection policies, cold dip galvanizing paint products have emerged Cold spraying zinc paint has a high solid content, low VOC emission of organic volatile matter, and will not produce a large energy consumption problem The anti-corrosion effect is equivalent to that of hot galvanizing, which makes galvanizing as easy as painting Considering the comprehensive cost, cold spraying zinc paint will have a great market prospect Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,