What kind of paint does the indoor steel structure brush does not smell, and what kind of anti rust

I don't know much about the specifics. There are very few on the market that don't have a little taste.

1. Iron red alkyd antirust paint: Iron red alkyd antirust paint is made of iron dan, lead chrome yellow and other pigments added to alkyd paint, filler, solvent and drier. The advantages of this type of paint are many, such as excellent adsorption, strong rust resistance, and nitro resistance.

However, the surface of this paint is not as smooth as other paints after drying, so it is very suitable for priming in the printing iron can industry.

2. Gray anti-rust paint: It is made by adding varnish with lead-containing zinc oxide as the main anti-rust pigment. It has excellent properties against rust and atmospheric erosion, but dries slowly, making it suitable for painting outdoor steel components.

Zinc yellow anti-rust paint: made by adding zinc chrome yellow pigment with pure phenolic paint and grinding and modulation, the biggest advantage is that it has a high resistance to salt water, so this kind of paint is very suitable for painting on ships.

4. Iron red phenolic antirust paint: Iron red phenolic antirust paint is made of antirust pigment, long oil phenolic or lipid paint, and rosin perfume in a certain proportion. Its biggest advantage is: the adsorption is very strong, the paint film is very soft, 5, Hongdan anti-rust paint: Hongdan antirust paint is a paint mixed with red dan and dry oil, its advantages are: good permeability, soft paint film, strong adsorption, but things have two sides, so it also has disadvantages: it is not easy to paint, drying is slow, and it cannot be stored for too long.

These are relatively ordinary, cheap paints, if it is some large venues and the like, it is necessary to use epoxy zinc-rich primer, cloud iron intermediate paint, fluorocarbon paint and other paints with strong anti-corrosion ability.

Coating Heng water-based anti-rust primer:

The adhesion with the substrate should meet the requirements, different substrates should choose the appropriate anti-rust primer, epoxy primer has a good anti-corrosion effect, strong applicability to different substrates, and is widely used as an anti-rust primer, which can meet most of the anti-corrosion and anti-rust requirements.

Commonly used varieties: two-component epoxy primer (zinc phosphate, zinc-rich, zinc yellow), polyurethane primer, one-component alkyd anti-rust primer, epoxy ester primer, chlorinated primer, etc. are also used as general anti-rust primers.

The intermediate paint is between the primer and the topcoat, which has good filling performance, can repair and improve the surface of the primer, and improve the overall spraying effect. The intermediate paint is generally semi-glossy, with a gloss of about 60, which is conducive to discovering the defects of the paint film after primer spraying, so as to repair the topcoat before spraying. At the same time, to improve the decoration, save the topcoat, etc., the coating with high requirements for anti-corrosion performance or high decorative requirements should be improved and improved by intermediate paint.

Commonly used varieties: two-component epoxy middle coating, epoxy micaceous iron middle coating, polyurethane middle coating, etc.

The topcoat is required to have excellent weather resistance, corrosion resistance to the medium in the use environment and excellent decoration, etc., and has high requirements for color, gloss, aging resistance, chemical resistance, scratch resistance and leveling. For the coating of projects with high decorative requirements, it is generally necessary to spray overlay varnish to improve the appearance and decoration performance.

Commonly used varieties: acrylic magnetic paint, acrylic polyurethane topcoat, fluorocarbon topcoat, etc., and sometimes overprint varnish is selected according to decorative requirements.

Indoor steel structure can be divided into ordinary carbon steel and galvanized steel according to the type of substrate, the primer used in the two is different, and the supporting system is roughly the same.

1. Ordinary carbon steel structure.

1. Medium anti-corrosion system:

Tuheng water-based epoxy primer + Tuheng water-based epoxy topcoat.

Epoxy primer + polyurethane topcoat.

2. Long-term anti-corrosion system:

Tuheng water-based epoxy zinc-rich primer + Tuheng water-based epoxy micaceous iron intermediate paint + epoxy topcoat.

Epoxy zinc-rich primer + water-based epoxy micaceous iron intermediate paint + water-based fluorocarbon paint.

2. Galvanized steel structure.

Galvanized steel is not used for ordinary carbon steel, the surface is smooth, most of the paint adhesion is not firm, easy to peel off the paint, can be coated with galvanized special epoxy primer.

1. Medium anti-corrosion system:

Epoxy primer + epoxy topcoat.

Epoxy primer + poly-coated Heng water-based urethane topcoat.

2. Long-term anti-corrosion system:

Epoxy primer + epoxy primer + epoxy topcoat.

Epoxy primer + epoxy primer + fluorocarbon paint.

It depends on what base surface is used, for example: epoxy zinc-rich primer should be used for steel structure, water-based primer for thermal insulation base, water-based oil-based primer for cement mortar base surface, or only closed halfway paint can be used.

Hello, do you want to make up the steel structure of the indoor ceiling?

Indoor steel structures need to consider whether there is corrosion.

If there is rust, you can use Teyishu with rust to rust anti-rust coating to dissolve and transform the rust to form a dense passivation protective film to prevent air from entering, prevent secondary oxidation, and then add a supporting special anti-corrosion topcoat, which can reach more than 10 years in the anti-corrosion market.

Antirust paint is a coating that protects metal surfaces from chemical or electrochemical corrosion such as atmosphere, seawater, etc. It is mainly divided into two categories: physical and chemical antirust paint. The former relies on the proper combination of pigment and paint to form a dense paint film to prevent the invasion of corrosive substances, such as iron red, aluminum powder, graphite antirust paint, etc.; The latter relies on the chemical rust inhibition effect of antirust pigments, such as red dan, zinc yellow antirust paint, etc.

It is used for rust prevention of bridges, ships, pipelines and other metals.

It can be coated with water-based cold galvanized paint; VOCs 38G L anti-corrosion coating, water-based cold galvanized coating with low environmental load, dry film zinc content of 95%, with the same strong anti-rust effect as hot-dip galvanizing.

It can be used from small metal parts to bridges and highways. Water-based cold galvanized coating has a wide range of applications, simple operation, solvent odor, and strong anti-rust performance.

The indoor steel structure is mainly the internal steel structure of the factory and workshop, and the anti-corrosion coating is carried out, and the corrosion factors need to be considered, such as moisture, acid gas, etc., and the targeted paint is selected according to the corrosive medium. The anti-corrosion of the steel structure is mainly based on the two-layer structure of primer + topcoat and the three-layer structure of primer + intermediate paint + topcoat.

The main anti-corrosion coating system of indoor steel structure:

ED500 epoxy primer + EM400 epoxy topcoat.

If you use an outdoor-type anticorrosive topcoat, the corrosion will last longer.

Water-based coating systems can also be used:

ED500 (W) Water-based Epoxy Primer + EM400 (W) Water-based Epoxy Topcoat ZD700 (W) Water-based Epoxy Zinc-rich Primer + EZ28 (W) Water-based Epoxy Mibulaceous Intermediate Paint + EM400 (W) Water-based Epoxy Topcoat.

It is required to strictly use professional anti-rust paint, and also brush fireproof paint. Generally, it is required to directly prevent gray.

The anti-corrosion of steel structure is mainly divided into two parts, one is the toughness and load-bearing capacity of the steel itself. One by one, it is the work of surface anti-corrosion, which mainly plays the role of anti-corrosion and waterproofing. For details, please refer to what paint is good for steel structure.

The design of the indoor steel structure requires anti-corrosion years, on-site working conditions, pH, and humidity.

Ordinary 1-3 years, iron red or red dan anti-rust primer + blending paint or alkyd enamel 3-5 years, epoxy ester primer, alkyd topcoat.

More than 10 years, epoxy zinc-rich bottom, epoxy cloud iron middle layer, acrylic polyurethane surface aliphatic acrylic polyurethane.

Non-mainstream ones also use chlorinated rubber and road goldenrod polyethylene.

Generally brushed anti-rust paint! Brush fire retardant paint to go!

Generally, it is epoxy composition of water-based steel structure anticorrosive paint. This performance is stable and the paint film is also very good. Adhesion is also very strong.

Of course, it will have an impact. Open the windows to ventilate for a few months, and it will be good to disperse.

Do as per the design file. If there is no design document, it depends on the environment in which the steel structure is located, and the types of coastal and inland, chemical plants and ordinary civilians, chemical plants, etc., are different from the number of anti-corrosion materials, thickness, and materials. Under normal circumstances, it is 2 bottoms, 1 middle 1 side.

Indoors, there are three options:

1. Primer + topcoat: thick film epoxy zinc-rich primer + various colors of epoxy anticorrosive paint (the anti-corrosion life can be guaranteed to reach 5-8 years);

3. Primer + intermediate paint + topcoat: ordinary epoxy zinc-rich primer + epoxy intermediate paint + various colors of chlorinated rubber topcoat (anti-corrosion life can reach 5-8 years) As above, they are all used in an indoor environment with low acid and low alkali.

Note: The difference between thick-film epoxy zinc-rich primer and ordinary epoxy zinc-rich primer is the amount of zinc. The zinc content of thick-film epoxy zinc-rich primer is 70, which is the national standard zinc content. The zinc content of ordinary epoxy zinc-rich primer is 40.

At present, the international use of water-based waterproof anti-rust paint, good use of water-based epoxy zinc-rich. Water-based inorganic zinc-rich. The anti-corrosion and anti-rust performance of German William series products can reach more than 1,000 hours of salt spray resistance, and the top coat can withstand the long-term erosion of complex vapor spray such as acid mist, alkali gas, damp heat, salt gas and other complex vapor sprays in the workshop, and is durable for 10-15 years.

Conventional William mica anti-rust water paint sprayed 2-3 times can also withstand more than 5 years Compared with traditional alkyd antirust paint, it dries more than twice as fast and the rust prevention is doubled Not a hazardous chemical No large VOC emissions **Environmental protection recommended products 20-30% more spraying area Lower material cost.

Surface treatment should be carried out first to remove floating soil, sand, mortar, oil, rust spots, welding slag and burrs on the surface of the steel structure.

The surface of the component must be dry, and if there are water droplets and water vapor, it must be wiped dry.

During the brushing process, the brush is in place, the brush is full, and the brush is even.

The painting needs to be applied in order, first with anti-rust paint, then with intermediate paint, and finally with top paint.

Painting order: from top to bottom, first difficult and then easy. When brushing, it is necessary to brush more and more reasonably, and the brush oil should be full, not flowing or falling, bright and uniform, and the color should be consistent. Check repeatedly after brushing to avoid missing brushing.

The anti-corrosion of steel structures requires a complete set of solutions: steel anti-corrosion measures, and the best effect is to paint fluorocarbon paint.

First of all, the steel needs to be derusted and then polished, and then coated with epoxy zinc-rich primer to isolate the air to prevent re-oxidation and rusting. At present, the best anticorrosive paint is fluorocarbon material. In the next step, the fluorocarbon primer and fluorocarbon topcoat do the final anti-corrosion treatment.

Generally speaking, the anti-corrosion, weather-resistant, and salt-spray resistant effects of fluorocarbon paint will reach 15-20 years.

Anti-corrosion paint with steel structures. After rust removal, the primer of the steel structure anticorrosive paint operation primer painting process: when the primer is sprayed, the first paint is generally mixed with the red dan antirust paint, and the viscosity of the red dan paint must be controlled before painting or spraying, so that the primer looks like the paint color and viscosity are uniform.

When brushing or spraying primer, it is necessary to pay attention to the construction process of frequent staining and short brushing, which is used to change the phenomenon that the brush has too much paint and falls, thus causing waste. When carrying out the second coat or spraying, you must wait until the first time to dry before you can paint the second layer, and you must not go on the second pass before the first time is not dry, which will make the surface of the steel structure wrinkled and the quality decreased.

Control the viscosity, consistency and thinness of the paint when coating, and fully stir it when mixing to make the paint color and viscosity uniform. The color should be exactly the same, and the color should be uniform. When coating, it shall not be misapplied or missed, and the coating shall be free of peeling and rusting.

The brushing should be even, without obvious wrinkles and bubbles, with good adhesion, and the color separation line should be clear and neat.

The thickness of the manual brush coating is extremely uneven, especially for high-viscosity anticorrosive coatings, the coating is too thick; Air spraying brings out the paint when the air is on the surface of the workpiece, and the utilization rate of the paint decreases. Airless spraying, which can not only obtain a uniform coating, but also smaller than air spraying, has a high effective utilization rate of coating, and can save 10 30% of paint compared with other coating methods.

There are many types of steel structure anti-corrosion paint, and the coating structure has a single-layer, double-layer and three-layer anti-corrosion system, which needs to be used in combination with the specific requirements of steel structure anti-corrosion. Such as anti-corrosion duration, cost budget, corrosion factors, use environment, etc.

Relatively simple, general anti-corrosion: simple anti-rust or decorative alkyd anti-rust paint or alkyd magnetic paint for simple steel structure, 1-2 pieces.

Alkyd antirust paint + alkyd magnetic paint.

Medium anti-corrosion: steel structure anti-corrosion for more than 5 years.

ED500 epoxy primer + EM400 epoxy topcoat.

ED500 epoxy primer + PU800 acrylic polyurethane topcoat heavy anti-corrosion: steel structure anti-corrosion for more than 15 years.

The method of joint protection of galvanized layer and paint coating is a more active and effective way to prevent corrosion.

1. The paint supporting system on galvanized steel used in water or humid environment must be alkali resistant and cannot be saponified, so it is advisable to choose epoxy coating. Zinc oxide yellow primer is best.

2. For galvanized steel exposed to a dry atmosphere, you can choose epoxy zinc yellow primer plus acrylic polyurethane topcoat, or epoxy zinc yellow primer + epoxy micaceous iron intermediate paint + fluorocarbon topcoat with super weather-resistant and ultra-long service life supporting scheme.

And remember to do a surface finish before painting!

The field of steel structure application is very wide, and the strength of corrosion in different environments is also different, anticorrosive paint and antirust.

In contrast, anti-corrosion paint has a stronger anti-rust effect, and the application environment is also very wide, which is more in line with the anti-corrosion and anti-rust coating of steel structures. The surface of the steel structure can be divided into three environments, and different paints are used to achieve anti-rust and anti-corrosion.

1. Bridge steel structure (ordinary type): the primer is epoxy zinc phosphate primer, the intermediate paint is epoxy micaceous iron intermediate topcoat, and the olenoic acid polyurethane paint.

2. Bridge steel structure (long-lasting type): the primer is epoxy zinc-rich primer, the intermediate paint is epoxy micaceous iron intermediate paint, and the topcoat is polysiloxane topcoat.

3, the plant steel structure: the primer is epoxy anticorrosive primer, the intermediate paint is epoxy micaceous iron intermediate paint, the topcoat is fluorocarbon topcoat The above supporting schemes are the most common matching, according to different environments to choose different anticorrosive paint, such as: high-rise building steel structure, tower steel structure, etc., if it is not a strong corrosion environment, the general selection of anticorrosive paint is mostly epoxy zinc yellow iron red primer, epoxy coal asphalt paint, etc., such as steel structures in harsh environments, generally choose epoxy zinc-rich primer.