Heavy anti-corrosion coatings

Heavy anti-corrosion coatings
refers to a class of anti-corrosion coatings that can be used in relatively harsh corrosion environments and have a longer protection period than conventional anti-corrosion coatings.
Chinese
heavy anti-corrosion coating
exethory name
heavy-duty coating
compared to
conventional anti-corrosion coating
characteristics
can be used in relatively harsh corrosion environment
Introduction to
Heavy Anti-corrosion Coatings: Its English name is heavy-duty coating, which refers to a type of anti-corrosion coating that can be applied in relatively harsh corrosion environments relative to conventional anti-corrosion coatings and has a longer protection period than conventional anti-corrosion coatings.
product features
(1) can be used under harsh conditions, and has a long life of corrosion protection, heavy anti-corrosion coatings in the chemical atmosphere and marine environment, generally can be used for 10 years or more, even in acid, alkali, salt and solvent media, and under certain temperature conditions, can be used for more than 5 years
China
.
(2) thick film is an important symbol of heavy anti-corrosion coatings. The coating dry film thickness of the general anti-corrosion coating is about 100 m or 150 m, while the thickness of the heavy anti-corrosion coating dry film is 200 m or more, and there are 500 m to 1000 m, or even up to 2000 m.
types
"Epoxy paint" thick-film epoxy zinc-rich primer, epoxy cloud iron rust-proof paint, epoxy glass scales, epoxy coal asphalt paint, epoxy floor paint.
vinyl chloride paint primer, finish paint, machine tool paint, hammer paint, fireproof paint, anti-corrosion paint, varnish, perchloroethylene putty.
"chlorinated rubber paint" chlorinated rubber color paint, chlorinated rubber aluminum powder anti-rust primer, chlorinated rubber anti-rust primer, chlorinated rubber iron-red aluminum powder anti-rust paint, chlorinated rubber bottom anti-fouling paint.
acrylic paint acrylic polyurethane cover varnish, all colors of acrylic polyurethane magnetic paint, acrylic road line paint.
fluorocarbon paint, fluorocarbon paint, fluorocarbon exterior paint.
"alcohol paint" mica iron oxide anti-rust paint, all kinds of aletic acid hull paint, all kinds of aleate magnetic paint.
Silicone high temperature paint: all kinds of silicone self-drying paint, all kinds of silicone drying paint, silicone high temperature insulation paint, aluminum powder high temperature paint, m1st high temperature paint.
Solvent-free anti-corrosion coating: solvent-free epoxy glass scale heavy anti-corrosion coating, solvent-free epoxy coal asphalt coating, solvent-free pipe wall resistance coating, solvent-free self-leveling floor paint.
special anti-corrosion paint: ethylene phosphate primer, inorganic zinc-rich primer, water-based inorganic zinc-rich primer, glass paint, template paint.
Applications
(1) Emerging marine engineering: offshore facilities, coastal and gulf structures, offshore oil platforms;
(2) Modern transportation: highway guardrails, bridges, boats, containers, train and railway facilities, automobiles, airport facilities;
(3) Energy industry: hydraulic equipment, water tanks, petroleum refined equipment, petroleum storage equipment (oil pipes, oil tanks), transmission and transmission equipment, nuclear power;
(4) Large-scale industrial enterprises: papermaking equipment, medical equipment, food and chemical equipment, metal containers inside and outside the wall, chemical, steel, petrochemical plant pipes, storage tanks, mining smelting, cement plant equipment, corrosive media on the ground, wall cement components;
(5) municipal facilities: gas pipelines and facilities (such as gas cabinets), natural gas pipelines, drinking water facilities, waste treatment equipment.the main difference between
-advanced mark
heavy anti-corrosion coating and conventional anti-corrosion coating is its high technical content, technical difficulty, involving many aspects of technological progress and product development, it no longer relies too much on the knowledge and experience of coatings, but depends on electronics, physics, ecology, machinery, instruments and management and other disciplines Knowledge and intersection, synthesis of high corrosion-resistant resins, application of high-efficiency dispersants and fluidization aids, development of new corrosion-resistant impermeable pigments and fillers, application of advanced construction tools, construction maintenance technology, site testing technology, etc., all need to be integrated into heavy anti-corrosion coating and coating. Therefore, the development level of heavy anti-corrosion coatings, performance, become a symbol of a national level of science and technology, become a measure of anti-corrosion coatings advanced technology signs.
surface treatment
surface treatment includes oil removal, rust removal, removal of surface defects, improve the adhesion of the coating and corrosion resistance, so surface treatment is the key to good coating results.
1. De-oiling
removes oil from the surface of metal work parts, enhances the adhesion of various coatings, oil removal methods are as follows:
solvent cleaning: commonly used solvents have 200 s solvent oil, X-6 or X-61 alcoholic acid thinners and other
alkaline cleaning
emulsified de-oil (I.e. surfactant cleaning): commonly used emulsified oils are: A-20, OS-15/OP-10
ultrasonic de-oiling
2. Rust removal
different steel device surface has different rust removal standards, it is in accordance with the rust-removal steel surface cleanliness classification, different rust removal methods to achieve different standards.
four different grades of corrosion:
The surface of Class A steel is completely covered with adhesive oxidizing skins and is virtually rust-free.
B-grade steel surface has begun to rust, oxidizing skin began to fall off in pieces.
skin on the surface of the C-grade steel is rusted or scratchable, but slight rust points can be seen in the naked eye.
D-grade steel surface has rusted off, the naked eye can see a large number of rust points.
according to SISO55900, the surface treatment of these rust grades is based on the following quality standards for wire brushing and sand blasting to remove rust:
St - Wire brush rust removal standard St2, St 3
Sa - sand blast rust removal standard Sa1, Sa2, Sa2.5, Sa3
sand blast rust removal - Sa
sand blast rust removal should be chiseled out, all thick rust layer, visible grease and dirt should also be removed. After sand blasting rust, the surface should be clean and free of dust and debris.
Sa1 mild sand blasting to remove rust
surface should be free of visible grease, dirt, attached to the oxide skin, rust, paint coating and impurities.
Sa2-grade thorough sand blasting and rust removal
the surface should be free of visible grease, dirt, oxide skin, rust, paint coating and impurities are basically clear, residue should be attached firmly.
Sa2.5 is a very thorough sand blast to remove rust
the surface should be free of visible grease, dirt, attached to the oxide skin, rust, paint coating and impurities. Residue marks show only slight spots of dot-like streaks.
Sa3-grade blasting removes rust to clean steel performance
the surface should be free of grease, oxide skin, rust, paint coating and magazines, the surface has a uniform metallic color.
brush to remove rust - St
St2 Thorough hand and power tools to remove rust
the surface should be free of visible grease, dirt, attached skin oxides, rust, paint coatings and magazines.
Sa3 very thorough manual and power tools rust removal
commonly used methods are chemical rust removal: often referred to as pickling, is an acid solution to promote the surface rust layer rust chemical changes and dissolved in the acid, and to achieve the purpose of rust removal.
3. Common methods for removing old paint films are mechanical removal, lye and emulsion lotion removal, organic solvent removal, and depainting agent removal.
4. Phosphate treatment
The process of treating metal products with iron, manganese, zinc and cadmium's orthophosphate solution can produce an insoluble phosphate protective film on the surface of metal products is called metal phosphation treatment.
Application Prospects
Heavy anti-corrosion coatings as anti-corrosion coatings, since the 1960s and 1970s began to apply, has been rapid development, the application of a wider range of applications, especially such anti-corrosion coatings technology to further promote the revolution, heavy anti-corrosion coatings from bioengineering, petroleum, chemical and other industries to absorb nutrition, grafting high technology, so that heavy anti-corrosion coatings play an increasingly important role, the development prospects are very attractive.
the difference between
and conventional anti-corrosion coatings
The main difference between heavy anti-corrosion coatings and conventional anti-corrosion coatings is that their high technical content, technical difficulties, involving technological progress and product development, it no longer relies too much on the knowledge and experience of coatings, it depends on electronics, physics, Ecology, machinery, instruments and management and other multidisciplinary knowledge and intersection, his technology comes from the synthesis of high resin resistance, high-efficiency dispersants and fluidization aids, new anti-corrosion impermeable pigments and filler development, advanced and special test equipment and other supporting measures.
Utility
Na plastic steel product category I, safety wading ultra-slip coating Safety wading ultra-slip coating, safety wading wear-resistant ultra-slip coating, safety wading ultra-slip coating (winter type) II, heavy anti-corrosion coating General heavy anti-corrosion coating, wear-resistant heavy anti-slip Corrosion coating III, special-purpose heavy anti-corrosion coating Chemical heavy anti-corrosion coating, high temperature heavy anti-corrosion coating, weather-resistant heavy anti-corrosion coating, conductive electrostectrical heavy anti-corrosion coating IV, molding repair materials General molding repair materials, slow-dry molding repair materials, wear-resistant molding repair materials Wear-resistant anti-cavitation molding repair materials, anti-wear ceramic molding repair materials, quick-drying emergency molding repair materials, copper molding repair materials, aluminum-made repair materials V, Q-MPS epoxy resin pouring speed into pads six, relying on fast passenger industrial equipment healing first aid Package General industrial equipment healing first aid kit, wear-resistant industrial equipment healing first aid kit, fast-drying industrial equipment healing first aid kit
na plastic steel
in equipment repair, heavy corrosion prevention and so on, especially in equipment defects, make up the size of the recovery, pre-protection, Solutions tailored to the equipment case by case to solve all kinds of difficult problems. Na plastic steel can be used in tap water, sewage, ships, oil, natural gas, chemical, electricity, paper, food and other industries.