There is usually divided into two types: conventional type and heavy anti-corrosion type.
Conventional anti-corrosion coatings protect the metal from corrosion under normal conditions and protect the life of non-ferrous metals. Heavy-duty anti-corrosion coatings can be applied in relatively harsh corrosive environments compared to conventional anti-corrosion coatings. A class of anti-corrosion coatings that achieve a longer shelf life than conventional anti-corrosion coatings.
1. The product develops in a multi-functional direction
According to incomplete statistics, there are more than 1,000 varieties of anti-corrosion coatings. The traditional resins are epoxy, epoxy asphalt, asphalt, chlorinated rubber, chlorosulfonated polyethylene, polyvinyl chloride, perchloroethylene, urushiol resin. , ethyl silicate, high chlorinated polyethylene, polyurethane, polyurethane asphalt, phenolic, alkyd paint, etc.
In recent years, there have also been many anti-corrosion coatings of modified resin varieties with excellent performance, such as alkyd resin modified polysulfide rubber modified epoxy waterproof anticorrosive coatings and acrylic modified alkyd enamels for railway passenger cars. At the same time, combined with China's own characteristics of anti-corrosion coatings, such as urushiol titanium, urushiol epoxy, urushiol heavy anti-corrosion coatings. A new generation of anti-corrosion coating system has gradually occupied the mainstream of market research and application. Environmentally-friendly anti-corrosion coatings such as water-based epoxy and water-based acrylic coatings have been successively released, enriching the types of anti-corrosion coatings and gradually developing into multi-functional directions.
2. Market demand and application range are broad
There are many anti-corrosion coating production enterprises in China. According to incomplete statistics, there are about 700 households. Among them, there are nearly one hundred manufacturers specializing in anti-corrosion coatings, but the scale is not large. There are only dozens of products with annual output of more than 1,000 tons. These production enterprises are mainly concentrated in the coastal provinces and cities of China and the central and southern regions. Due to the differences in the natural environment and development characteristics of various provinces and cities, the varieties and uses of anti-corrosion coatings are also different.
At present, China's anti-corrosion coatings are mainly used in the chemical and petroleum industries, railways, highways and bridges, metallurgical industry, power and energy industry, machinery and textile industry, industrial products, automotive, shipbuilding and container industries. Among them, the most demanding industries are the chemical and petroleum industries, which include the corrosion protection of steel structures and reinforced concrete structures in oilfield facilities, oil pipelines, offshore platforms, petrochemical plants; at the same time, the construction and maintenance of railways and highway bridges are also anti-corrosion. In the key areas of coating applications, in addition, industrial products and marine anti-corrosion areas such as automobiles and ships are also the most demanding points in the anti-corrosion coating market.
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