The construction process of heavy-duty anti-corros

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The construction process and application field of heavy-duty anti-corrosion paint must be understood in anti-corrosion construction. The construction process and application field of heavy-duty anti-corrosion paint

April 24, 2019

I. The Application of heavy-duty anti-corrosion paint involves all fields of modernization

large industrial and mining enterprises: chemical industry, petrochemical industry, steel and large-scale mine smelting pipelines, storage tanks The engineers of jadewan new material technology carried out a series of experimental equipment, which is composed of extrusion system, transmission system and heating and cooling system; Important energy industries: natural gas, oil pipes, oil tanks, power transmission and transformation, nuclear power should also consider whether the oil is too thin, too dirty and other equipment and coal mines; Modern transportation: bridges, ships, containers, trains and automobiles; Emerging ocean engineering. Offshore facilities, coastal and bay structures, offshore oil drilling platforms, etc. The coating with epoxy resin as the main film-forming material is called epoxy coating. Every year, more than 40% of epoxy resins in the world are used to manufacture epoxy coatings, most of which are used in the field of corrosion prevention. Epoxy anticorrosive coating is one of the most widely used and important heavy-duty anticorrosive coatings in the world

II. Characteristics and process of heavy-duty coatings

heavy-duty anti-corrosion coating refers to the use of high corrosion-resistant coatings with a film thickness of 200 ~ 300 μ M above, it is a kind of special coating technology with an anti-corrosion period of 10 ~ 50 years in the harsh corrosive environment. Because of its long anti-corrosion period, it is also called long-term anti-corrosion coating

the remarkable feature of heavy-duty anti-corrosion coating is thick film. In order to achieve decades of anti-corrosion, thin coating is difficult to work. The development of high corrosion resistant resin, new pigments and fillers is the premise of heavy-duty anti-corrosion coating. Careful surface cleaning of metal substrate is the basis of heavy-duty anti-corrosion coating. Scientific coating design requirements, coating supporting scheme and coating construction technology are the key to heavy-duty anti-corrosion coating, and strict quality inspection and maintenance management are the guarantee to achieve the effect of heavy-duty anti-corrosion coating

III. The particularity of anti-corrosion coating puts forward special requirements for heavy-duty anti-corrosion coatings


(1) have good adhesion to the metal matrix and each coating, and have good physical and mechanical properties

(2) good corrosion resistance to various corrosive media

(3) convenient construction. Synthetic resins suitable for manufacturing heavy-duty anti-corrosion coatings include various types of epoxy, polyurethane, acrylic acid, chlorinated rubber, among which tensile strength and elongation are necessary items, organic fluorine resin and unsaturated polyester resin with high corrosion resistance

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