PU Coating Flame Retardant

PU Coating Flame Retardant is based on polyurethane (PU), supplemented by flame retardant materials, and coated on the surface to increase its fire resistance and flame resistance. Its main function has several ends: first, to block the spread of fire sources. In case of fire, due to its special molecular structure, it can release non-flammable gases when decomposed, isolate oxygen, and inhibit flame expansion. Second, to reduce the burning rate of objects. Under the action of high temperature, the coating can quickly form a carbonaceous heat insulation film, shielding external heat, making it difficult for the ignition source to further support combustion. Third, to reduce the volatilization of harmful gases and smoke. When the flame retardant coating burns, it releases less toxic smoke than the conventional coating, slowing down the spread of smoke and toxic diffusion, which is beneficial to personnel escape and environmental protection.
Fourth, delay the damage of structural materials. PU flame retardant coatings effectively protect the substrate, so that buildings, textiles, wood and other materials are not easy to collapse when exposed to fire, and enhance their overall safety. Fifth, maintain property safety and reduce post-disaster losses. Widely used in key facilities and places, play an important role. Sixth, adapt to modern environmental protection requirements. In today's world, flame retardant formulas use green and environmentally friendly materials to comply with regulations to reduce the harm to nature.
Its application range is very wide, especially good at textiles, electronics, electrical appliances, furniture, transportation, construction and other fields. In case of fire resistance and high temperature resistance, this coating can be used to ensure safety. The mechanism lies in the synergistic effect of PU matrix and flame retardant, the outer layer can rapidly expand and coke, the inner layer blocks heat migration, and the double effect is applied to achieve the effect of delayed combustion.
Overall, the function of PU Coating Flame Retardant is to ensure the safety of people, reduce financial disasters, enhance the life of objects, and maintain social harmony. Those who pay attention to safety should carefully distinguish its meaning and choose good application to benefit the world.

Polyurethane film flame retardant is one of the chemical industry, because of its excellent performance, it is widely used in many fields. Its texture is light and flexible, it adheres firmly, and it has the beauty of fire prevention. It has a wide range of uses and is very impressive. Factory equipment, market supplies, all rely on this to increase security. Between textiles, clothes and quilts are covered with a polyurethane film, which can not only resist moisture and dust, but also slow down the spread of fire. Every time there is a prairie disaster, it can be avoided from burning. It is also indispensable in buildings. Walls, boards, and all places that need fire protection must be covered with this, which not only prevents fire, but also maintains its strength and beauty.
Transportation, especially safety. Aircraft interiors, subway handrails, and train seats are all covered with flame retardant films to prevent fires. It is also often used in the shipbuilding industry, such as bulkheads and floors, all of which are covered with polyurethane film to prevent accidents. Electronic appliances, cable wrapping, circuit board insulation, rely on flame retardant polyurethane to ensure stable operation. In the field of packaging, boxes of valuable goods are also coated with fire protection layers, so that they can pass through dangerous roads without fear of fire alarms.
In the military industry, it is used to equip shells and ammunition depots to prepare for sudden changes; in the medical industry, it is used for protection, and equipment is wrapped, taking into account safety and hygiene. Interior furnishings, such as curtains, seat cushions, and carpets, can be used to ensure home safety. In stadiums, people gather, especially the flame retardant film, which is used in the grandstand chair cushions and protective materials. In addition to the above, there are also car interiors, household appliances, warehousing and logistics, mining facilities, experimental instruments, outdoor tents, etc.
In today's society, security is the top, and the flame retardant art of polyurethane film coating is really the key to modern industry and people's livelihood protection. It is widely used in nine domains, and everything is used.

The flame retardant of polyurethane coating is also the so-called PU Coating Flame Retardant in English today. The original use of the cover is to prevent fire and delay combustion to ensure the safety of the use. However, whether it is environmentally friendly or not needs to be considered from the material itself, the manufacturing process, and the waste treatment.
Polyurethane is also a synthetic polymer, which is widely used in the fields of textiles, furniture, and electronics. Coating flame retardants is mainly based on bromine, phosphorus, and inorganic substances. If it is a halogen-based flame retardant, it may release harmful substances during combustion, pollute the air and soil, hinder the ecology, and is easy to be criticized. However, the production method is gradually improving, and halogen-free, low toxicity, and easy decomposition are becoming a new trend. Phosphorus-based flame retardants and inorganic systems emit less harmful substances and relatively reduce ecological hazards. International environmental protection standards such as the European Union REACH regulation, the RoHS directive, and the California Proposition 65 in the United States all expressly stipulate the upper limit of the content of harmful chemicals, and enterprises must strictly abide by them.
In terms of the manufacturing process, chemical synthesis requires many solvents and additives, and the volatilization of some materials can easily cause VOC emissions and increase air pollution. However, if green solvents are used and the process is optimized, the pollution can be controlled. As for waste treatment, polyurethane products are mostly difficult to degrade. If they are directly incinerated, toxic gas will be generated, which is taboo for environmental protection. Today, some companies promote recycling, or degrade and recover through physical and chemical decomposition technologies, which greatly reduce the disadvantages. Therefore, environmental friendliness depends on the optimization of the whole process and the pursuit of sustainable development.
Environmental protection standards vary from place to place. China has regulations such as "Technical Requirements for Environmental Labeling Products - Furniture Coatings", and European and American requirements are particularly strict. If the PU flame retardant used can pass the relevant toxicity test, heavy metals and other indicators meet the standards, and VOC emissions are controlled below the limit, it can be regarded as compliance. However, if you blindly pursue flame retardant and ignore potential environmental hazards, although it can be used, it is difficult to be a "green" device.
In short, whether PU Coating Flame Retardant is environmentally friendly depends on material selection, process innovation, waste disposal, and regulatory compliance. If it can be fully optimized and environmentally harmless, it will be an environmentally friendly product in time.

Polyurethane (PU) coated with flame retardant is widely used in fabrics and plastics to resist fire. In terms of its service life, it is closely related to the material, process and environment. PU coating has been applied to the surface of the object, which has greatly increased the wear resistance, water resistance and fire resistance. However, when it moves from time to time, the coating also has the worry of aging.
In the first year of application, PU has a solid texture and outstanding flame retardant effect. If a hook flame passes by, it can contain the spread of fire and protect the covered material. However, the calendar gradually shifts, light, temperature difference, and moisture breeze all erode its surface, resulting in the gradual loss of coating toughness and the decrease of flame retardant efficiency. If you are in a stable, dry place with less exposure to the hot sun, the PU coating can still last for six to twelve years, or longer without damaging its use. However, if you are in the environment of blazing sunlight, humid leakage, and frequent friction, five years is already the limit. If it is overdue, the layer will be as thin as a cicada's wing, and the fracture will be like a dead branch, and the flame retardant effect will be greatly reduced.
PU flame retardant coatings must also be well maintained when they are used. If they are frequently touched by pollution, solutions, and sharp objects, their lifespan will be reduced immediately. On the contrary, if you choose a time to check every two years, and repair it according to the aging state, you can almost prolong its vitality. However, no matter what the protection is, the days are still limited. The coated flame retardant is easy to precipitate over the years, the molecular chain is broken, and the flame retardant groups are reduced. Its performance is at the end of its life, or it still has a little resistance, so it can no longer be relied on to block the fire.
In summary, the life of PU flame retardant coatings depends on the original material, production process, environment and maintenance. About six to ten years, and it will fade depending on the conditions. It is not only the work of ensuring safety, but also the life of physical disappearance. If you want to maintain its effectiveness for a long time, choose high-quality raw materials, be diligent in protection, and repair it in time. At the end of its life, it must still be replaced in time, so as not to delay the disaster in the future.

The construction of PU-coated flame retardant should abide by the procedures to achieve excellent results. The first thing to consider is the cleanliness of the substrate, to remove dust and oil stains, so that the surface is flat and there is no foreign matter mixed. If the surface is wet, it should be dried before construction. The selected substrate must be compatible with the PU flame retardant coating to avoid chemical reactions, which will affect its flame retardant performance.
When preparing flame retardant, be sure to be accurate in proportion and stir slowly, so that the auxiliary agent and the main agent are evenly mixed, and there should be no precipitation or agglomeration. Before painting, it is advisable to conduct a small test to check the compatibility, and observe that it has no peeling and bubbling problems, then it can be applied. When applying, it is appropriate to have moderate temperature and humidity. If the humidity is too high, it is easy to cause the coating to turn white and peel, and the temperature is too low, which is unfavorable for film formation. It should be done when the weather is clear and clear. If it encounters wind and rain, it must be suspended.
PU flame retardant coating has a certain thickness. If it is thin, it is difficult to achieve the effect of flame retardant. If it is thick, it is easy to crack and peel off. The craftsman should apply thin coating in stages according to the design requirements. In each coating room, it can be renewed after the previous one is slightly dry. The operating equipment must be clean and free of impurities, and it is forbidden to use it with water vapor impurities. During the construction process, protective equipment should be worn to prevent the paint from touching the skin and respiratory tract. Pay
After the construction is completed, wait for it to be naturally maintained, do not expose to the sun, and do not suddenly cold and heat. During the maintenance period, it must be dustproof and waterproof to prevent external impurities from falling into the coating when it is not dry. During acceptance, the flame retardant effect must be tested to ensure that every place meets the standard before it can be put into use. For long-term use, it is also advisable to regularly check the integrity of the coating, find that it falls off or is damaged, and repair it in time to ensure the safety of fire protection.
is a clever application of PU flame retardant coating. It is important to review the materials, correct processes, and diligent protection. The regularity is the safety that can be expected for a long time,