Anticorrosive coating varieties
Epoxy series
Epoxy anticorrosive paint series: epoxy zinc-rich primer perchloroethylene anticorrosive paint epoxy primer epoxy coal tar pitch anticorrosive paint epoxy mica iron intermediate.
Epoxy coatings are usually used as primers and intermediate paints for anticorrosive coatings.
The epoxy anticorrosive coating consists of epoxy resin and antirust pigments and fillers, and the curing agent is component 2.
The characteristics of epoxy anticorrosive paint are: good water resistance, acid and alkali resistance and rust resistance. Strong adhesion to steel and cement surfaces.
Application of epoxy anticorrosive coating: it is suitable for water-resistant, oil-resistant and chemical-resistant reagents for pipelines, various steel structures, bridges, oil brick platforms and chemical equipment. Can be used for protective priming, and can also be used for priming of cement base materials or overall protection of the bottom surface.
Polyurethane series
Polyurethane anticorrosive coating composition: it is a two-component self-drying coating, the first component is polyester color paste and the second component is special curing agent.
Characteristics of polyurethane anticorrosive paint: good anticorrosion performance. The coating has good adhesion, toughness, wear resistance, elasticity, acid resistance, alkali resistance, salt resistance, oil resistance, petroleum product resistance, benzene solvent resistance, water resistance, boiling water resistance, seawater resistance and chemical atmosphere resistance. Application of Polyurethane Anticorrosive Coatings: Suitable for anticorrosion coating of steel structure facilities, gas pipelines, chemical facilities, oil tanks, bridges, docks, gas cabinets, motors, electrical appliances, aluminum alloys, etc.
Acrylic acid series
Composition of acrylic anticorrosive paint: an anticorrosive paint composed of acrylic resin as the main base and modified resin, pigments and fillers, additives and solvents.
Characteristics of acrylic anticorrosive paint: the paint film has excellent gloss and color retention and weather resistance. It has good physical and mechanical properties. The paint film dries quickly and is convenient for construction, and can be constructed at -20℃-50℃.
Application of acrylic anticorrosive coating: This coating is suitable for anticorrosion protection and decoration of steel structure and concrete.
Perchloroethylene anticorrosive paint
Perchloroethylene anticorrosive paint consists of perchloroethylene resin, alkyd resin, toughening agent and pigment, which are mixed with solvent after grinding.
Characteristics of perchloroethylene anticorrosive paint: the paint has excellent corrosion resistance, acid and alkali resistance, mildew and moisture resistance, and poor adhesion. If it is well matched, it can be made up.
Application of perchloroethylene anticorrosive paint: It can be used on metal and wood surfaces of various chemical machinery, pipelines, equipment and buildings. And can prevent the corrosion of chemicals such as acid and alkali.
Chlorinated rubber anticorrosive paint
Chlorinated rubber anticorrosive paint consists of chlorinated rubber, modified resin, pigment, filler, stabilizer and organic solvent.
The characteristics of chlorinated rubber anticorrosive paint: good acid resistance, salt corrosion resistance and atmospheric corrosion resistance, and good physical and mechanical properties. Application of chlorinated rubber anticorrosive paint: it is mainly used for protective coating of automobile chassis and construction machinery chassis, or protective coating of equipment, pipelines and metal components under mild corrosion.
Highly chlorinated polyethylene
The highly chlorinated polyethylene anticorrosive coating consists of chlorinated polyethylene resin (HCPE), modified resin, plasticizer, pigment, additive and solvent.
Properties of highly chlorinated polyethylene anticorrosive paint: the paint film is tough, with excellent weather resistance, corrosion resistance and flame retardancy. It has excellent anticorrosion performance for industrial atmosphere, "three wastes" polluted media and corrosive media (ammonia, chlorine and carbon dioxide) such as acid, alkali, salt and mineral oil with different concentrations.
Application of highly chlorinated polyethylene anticorrosive coating: it is suitable for petrochemical industry, metallurgical mines, construction workshops, transportation facilities, ships and bridges, construction machinery, sewage treatment and other steel structures, concrete facilities, industrial floors and other anticorrosive projects.
Inorganic anticorrosive coating ZS is a new type of inorganic polymer and inorganic polymer coating, which has dispersed and activated nano-materials of metal and metal oxide, can react quickly with iron atoms on the surface of steel structure, has no pollution to the environment, has physical and chemical protection effects, has long service life and reaches the international advanced level. It is a high-tech replacement product that meets the requirements of environmental protection.
Selection of responsible coatings
There are many kinds of Qianlang brand antirust and anticorrosive paints with different properties and uses. How to choose a reasonable coating according to different needs can be determined by comprehensive factors such as quality standards, drying conditions, construction performance, variety characteristics, price and cost, low toxicity and high efficiency. If dark black painting is improper or construction is unreasonable, it will cause economic losses or dislike the construction period. It is generally believed that the factors affecting the life of paint film are: 50% of steel surface rust removal quality, paint film? 0/5% of/kloc-,5% of species, and 30% of construction technology and environmental conditions. It can be seen that various factors need to be paid attention to in order to achieve the expected protection and decoration effect of the coating.
In order to make the coating give full play to its due role, the following aspects should be considered when selecting the varieties of antirust and anticorrosive coatings:
1. Considering the application scope and environmental conditions of the coating object:
Such as bridge paint: mainly consider two aspects: steel corrosion protection and outdoor weather resistance. If the bridge is in a hot and humid environment, it is also necessary to consider the three-proof performance. In addition, if the coated objects are often wet or subjected to long-term heat, static electricity or vibration, their choice of coatings should be different. In the hot and humid environment, you must choose a coating with good water resistance and moisture resistance, otherwise the coating will not be durable and will blister and fall off in a short time. Indoor coatings with poor weather resistance will soon lose their luster, color change, pulverization and lose their function when they are applied outdoors.
2. According to the material of the object to be coated, the metal is steel, aluminum, copper, etc. The surface treatment is zinc plating, chromium plating and phosphating. Therefore, the same paint cannot be randomly selected, such as red lead, iron red, zinc-rich and so on. Used for rust prevention of steel surface, zinc yellow, etc. For non-ferrous metals. Galvanized coatings on steel must be selected with good alkali resistance and unsaponifiable varieties. 3. According to the painting requirements and price considerations: When it is also used for steel structures, there are great differences in costs and requirements between ordinary workshops and steel structures. Ordinary factory buildings only need red lead antirust primer and fire retardant coating to match them.
4. Consideration of construction conditions: it is difficult to choose drying paint for large steel objects, which is slightly slower in air drying and faster in volatilization drying, but it is not suitable for painting. Two-component coatings have excellent performance and need to be applied now, so each coating has its own different construction conditions and application environment. For different components, different coatings should be selected reasonably and effectively.
5. Considering the compatibility of coatings: With the development of economy, new types of coatings emerge one after another, with different performances. As the department involved, construction workers should always know the description of the types, components, characteristics, uses and storage period of various paints, and also know the compatibility of various paints. Improper matching will affect the adhesion between the coating and the substrate, which will seriously lead to the scrapping of the whole coating and rework. In order to strengthen the adhesion between layers, attention should be paid to the compatibility among primer, putty, intermediate layer, topcoat and finish varnish. It must be proved by practice that the binding force between the two is stable and does not bite the bottom, so as to achieve the expected effect. Generally choose copper paint varieties. In addition, attention should be paid to auxiliary materials, such as diluents and curing agents. When selecting coatings, we should choose varieties that are economical and can meet the performance requirements. Generally, high-quality varieties should not be degraded, which will cause waste to enterprises. At the same time, varieties that cannot meet performance indicators should not be used reluctantly to avoid unnecessary losses.
Selection of responsible coatings
There are many kinds of Qianlang brand antirust and anticorrosive paints with different properties and uses. How to choose a reasonable coating according to different needs can be determined by comprehensive factors such as quality standards, drying conditions, construction performance, variety characteristics, price and cost, low toxicity and high efficiency. If dark black painting is improper or construction is unreasonable, it will cause economic losses or dislike the construction period. It is generally believed that the factors affecting the life of paint film are: 50% of steel surface rust removal quality, paint film? 0/5% of/kloc-,5% of species, and 30% of construction technology and environmental conditions. It can be seen that various factors need to be paid attention to in order to achieve the expected protection and decoration effect of the coating.
In order to make the coating give full play to its due role, the following aspects should be considered when selecting the varieties of antirust and anticorrosive coatings:
1. Considering the application scope and environmental conditions of the coating object:
Such as bridge paint: mainly consider two aspects: steel corrosion protection and outdoor weather resistance. If the bridge is in a hot and humid environment, it is also necessary to consider the three-proof performance. In addition, if the coated objects are often wet or subjected to long-term heat, static electricity or vibration, their choice of coatings should be different. In the hot and humid environment, you must choose a coating with good water resistance and moisture resistance, otherwise the coating will not be durable and will blister and fall off in a short time. Indoor coatings with poor weather resistance will soon lose their luster, color change, pulverization and lose their function when they are applied outdoors.
2. According to the material of the object to be coated, the metal is steel, aluminum, copper, etc. The surface treatment is zinc plating, chromium plating and phosphating. Therefore, the same paint cannot be randomly selected, such as red lead, iron red, zinc-rich and so on. Used for rust prevention of steel surface, zinc yellow, etc. For non-ferrous metals. Galvanized coatings on steel must be selected with good alkali resistance and unsaponifiable varieties. 3. According to the painting requirements and price considerations: When it is also used for steel structures, there are great differences in costs and requirements between ordinary workshops and steel structures. Ordinary factory buildings only need red lead antirust primer and fire retardant coating to match them.
4. Consideration of construction conditions: it is difficult to choose drying paint for large steel objects, which is slightly slower in air drying and faster in volatilization drying, but it is not suitable for painting. Two-component coatings have excellent performance and need to be applied now, so each coating has its own different construction conditions and application environment. For different components, different coatings should be selected reasonably and effectively.
5. Considering the compatibility of coatings: With the development of economy, new types of coatings emerge one after another, with different performances. As the department involved, construction workers should always know the description of the types, components, characteristics, uses and storage period of various paints, and also know the compatibility of various paints. Improper matching will affect the adhesion between the coating and the substrate, which will seriously lead to the scrapping of the whole coating and rework. In order to strengthen the adhesion between layers, attention should be paid to the compatibility among primer, putty, intermediate layer, topcoat and finish varnish. It must be proved by practice that the binding force between the two is stable and does not bite the bottom, so as to achieve the expected effect. Generally choose copper paint varieties. In addition, attention should be paid to auxiliary materials, such as diluents and curing agents. When selecting coatings, we should choose varieties that are economical and can meet the performance requirements. Generally, high-quality varieties should not be degraded, which will cause waste to enterprises. At the same time, varieties that cannot meet performance indicators should not be used reluctantly to avoid unnecessary losses.