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1. Iron paint generally refers to anti-rust paint and fluorocarbon paint sprayed on the surface of iron products.
2. Metal spraying is divided into three types: air spraying, electrostatic powder spraying, and magnetic spraying.
Air spraying and wood spraying process is close, adding a low-temperature drying process, paint varieties are generally metallic effect paint (such as glitter silver, gold and silver, etc.), the overall appearance effect is bright, it can also spray rubber paint, crack paint, drape paint and other effects, artistic effect is strong. Air painting also has the disadvantage that the coating is easy to break, and on the other hand, it is easy to stick to dust. As soon as the metal parts are damaged and rusted, the galvanic battery effect will be produced, and the degree of damage is high.
Electrostatic powder spraying, also known as plastic spraying, is generally sprayed with powder, polymer materials such as epoxy resin, etc., the powder is not negatively charged, and the metal parts are positively charged, and the principle of electrostatic positive and negative attraction is attached to the surface of the workpiece. It is covered by melting the resin powder at 180 200 high temperatures. The adhesion on the surface of the workpiece is therefore better than that of air spraying, and the coating thickness is up to .
However, the disadvantage is that the surface leveling is poor, and the coating color adjustment is difficult, and there are less than 10 colors to choose from. There are two special kinds of raw materials for electrostatic powdering. One is fluorocarbon material, the other is non-stick fluororesin, and the metal surface is sprayed with fluorocarbon resin.
Because the resin is a composite powder with fluorine material as the base material, it has a more consistent adhesion to the carbon element in the metal iron parts, so the spraying of this kind of material is called fluorocarbon.
Non-stick material fluorine resin, sprayed on the surface of metal parts, to achieve smooth and non-adhesive to any object, while the material adapts to the temperature resistance of up to 300, is an ideal coating to meet the requirements of hygienic and high-temperature environment, suitable for kitchen furniture, laboratory furniture use.
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On top of metal, epoxy paint is used for primer and acrylic paint or polyurethane paint is used for topcoat.
How to paint an iron railing.
Rust sanding. First of all, you need to use sandpaper to polish the rust of the iron railing, pay attention to the polishing must be clean, and the rust and the paint that is about to fall off should be polished.
Brush the anti-rust paint first.
After sanding clean, brush the anti-rust paint first, pay attention to not brush the paint first, only the anti-rust paint can have a good isolation effect on the oxidation reaction of the iron railing, so that it is not easy to rust.
Then apply the paint. After putting on the anti-rust paint, you can brush the surface of the paint, at this time, the paint must be stirred evenly, so that the paint color can be uniform and not easy to fall off.
Finished product protection. After brushing the paint, you must pay attention to the protection of the finished product, that is to say, use it to touch the paint within the 24 hours of brushing, and there should be corresponding protection or prompts to prevent them from unintentionally touching, and it will be fine after waiting for the end of 24 hours.
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Paint red. Red paint is an anti-rust paint that prevents the iron from rusting, and then brush a layer of black paint, which is safer.
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anti-rust paint, and then feel free to paint decorative paint.
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Before painting ironware, it is necessary to clean the surface dust and other stains, first apply a layer of anticorrosive paint, and then brush the surface paint.
Iron ware should pay attention to anti-corrosion and anti-rust, so be sure to wear anti-corrosion paint.
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First use iron sand to polish it, remove the dust on the polished iron, and then brush the paint.
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After yarning, brush the anti-rust paint twice, and after drying, you can make a color topcoat.
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Iron tools should be painted with varnish to paint them.
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Acrylic Paints with acrylic resin as the main film-forming material are called acrylic resins.
Paints. Acrylic resin coating has the characteristics of light color, high transparency, color retention, gloss retention, bright and plump, weather resistance, heat resistance and corrosion resistance, strong adhesion, hardness and toughness. The main types of acrylic resin coatings are thermosetting acrylic coatings, two-component acrylic coatings, and thermoplastic acrylic coatings.
Nitro paint Nitro paint is made of nitrocellulose as the basic film-forming substance, which is mixed with resin and toughener and dissolved in organic mixed solvent. The film of nitro paint dries quickly. It can be dried 10min after construction; The paint film is hard and wear-resistant.
After drying, it has enough mechanical strength and durability, and can be waxed and varnished, which is easy to trim; The paint film has a good gloss. However, this type of paint has a low solid content and a thin paint film after drying, which requires multi-pass construction.
Polyester varnish Polyester varnish is a high-performance, two-component wood decorative coating. The products are divided into glossy topcoats, semi-matte topcoats, matte topcoats and transparent primers. The products are widely used in the decoration and protection of indoor and outdoor wood, wrought iron surfaces.
It is easy to use, will not cause yellowing of latex paint walls, and is the preferred material for modern home decoration. Uses: It is suitable for the decoration of wood furniture factories and various types of wood surfaces in interiors.
Epoxy resin paint Epoxy resin paint is a coating with epoxy resin as a film-forming material. It is divided into six categories: unesterified epoxy resin paint, esterified epoxy resin paint, water-soluble epoxy electrophoresis paint, epoxy linear coating, epoxy powder coating and alicyclic epoxy resin coating. The outstanding properties of epoxy resin paint are strong adhesion, especially to metal surfaces, and good chemical corrosion resistance.
It has good paint film color retention, thermal stability and electrical insulation.
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With epoxy rich new primer, the anti-rust function is relatively strong. It's spraying a fluorocarbon paint on it. You go and look at it.
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Wrought iron generally uses acrylic paint, more extensive, general wrought iron manufacturers are using acrylic, epoxy fuxin paint, fluorocarbon paint is more expensive than hot-dip galvanizing, so unless the customer specifically requires this to use, but now it is generally rarely used!
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