Formulation of heavy-duty anticorrosive coating an

2022-07-22
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The application of heavy-duty anti-corrosion coatings involves various fields of modernization. Every year, more than 40% of the epoxy resin in the world is used to manufacture epoxy coatings, most of which are used in the field of anti-corrosion. Epoxy anticorrosive coating is one of the most widely used and important heavy-duty anticorrosive coatings in the world

for a long time, anti-corrosion coatings have been widely used in various fields of the national economy as a simple, economic and effective anti-corrosion means. In recent years, heavy-duty anticorrosive coatings, which are simpler and more economical, have been widely used and developed rapidly in many fields at home and abroad. Now let's have a look

heavy duty anticorrosive coating formula

epoxy 30%, polyurethane 20%, zinc rich primer 16%, alkyd 14%, acrylic chlorinated rubber 13%, fluorocarbon 4%, polysiloxane 1%, others%

the role of heavy-duty anti-corrosion coatings

first, protective effect

metals, wood and other materials are often exposed to the atmosphere, and are gradually destroyed due to the erosion of moisture, salt fog, gases, microorganisms and so on in the atmosphere. Coating the surface of the object can isolate the external corrosive medium, prevent corrosion and prolong the service life

II. Decorative function

paint has the characteristics of bright, beautiful, bright and beautiful, and pleasing color. It can change the original color of objects, harmonize colors, improve the environment, and beautify life. In national defense, the protective color of paint is also used to camouflage and hide

III. marking function

the color of paint can be used as a mark for chemicals and dangerous goods used in various factories, and all kinds of pipes, mechanical equipment and annunciator on the ship can be painted with various colors as a mark, which can make it easy for operators to identify and operate. Different colors of paint are used on the transportation line to indicate warning, danger and other signals

IV. special functions

insulating coatings can play an insulating role in the electrical industry; Antifouling paint can kill or disperse marine organisms attached to the bottom of the ship; Some coatings also have special protective effects such as skid resistance and oil resistance

the function of coating is usually achieved through supporting coating (such as anticorrosive paint) or a single coating (powder coating)

heavy duty anticorrosive coating standard

the important symbol of heavy duty anticorrosive coating standard is thick film, which is compared with 100 mu of conventional anticorrosive coating; M to 150μ m. The dry film thickness of heavy-duty anti-corrosion coating reaches 200 mu; M or 300μ M or more, and even some special coatings have a surprising dry film thickness of 2000 mu; m(2mm)。 The thick anti-corrosion coating provides a reliable guarantee for the long-term life of the coating

in order to achieve the purpose of long-term corrosion protection, there are high requirements for the main film-forming material synthetic resin. First, because of the particularity of the coating industry, synthetic resin must have good adhesion to the scripture matrix, and at the same time, it also needs to have excellent corrosion resistance to various media, such as chemical atmosphere, salt, alkali and other solvents. For example, the epoxy resin used in ordinary anti-corrosion coatings has problems such as poor weather resistance and easy pulverization, while the heavy-duty anti-corrosion coatings for chemical atmosphere in heavy-duty anti-corrosion coatings are modified by using chlorosulfonated polyethylene rubber and then adding other components, and they are improved into epoxy heavy-duty anti-corrosion coating products according to the requirements of different corrosive environments

product characteristics of heavy-duty anti-corrosion coatings

① it can be used under harsh conditions and has a long-term anti-corrosion life. In chemical atmosphere and marine environment, heavy-duty anti-corrosion coatings can generally be used for more than 10 or 15 years, even in acid, alkali, salt and solvent media, and under certain temperature conditions, it can also be used for more than 5 years

② thick film is an important symbol of heavy-duty anticorrosive coatings. The dry film thickness of general anti-corrosion coating is 100 mu; M or 150μ M, while the dry film thickness of heavy-duty anticorrosive coating is 200 mu; M or 300μ Above M, there are 500 mu; m~1000μ m. Even up to 2000 mu; m。

summary: the above is the content of the heavy-duty anticorrosive coating formula introduced by Xiaobian. Do you know? I hope I can help you effectively. Please pay attention to more information

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