Portable spray guns are now very common.
The transfer efficiency (paint utilization rate) of traditional air spray guns is about 30%, while the other 70% of the spraying solvent is dispersed into the surrounding environment with the flying mist, which wastes a lot of paint or coating, not only increasing the economic cost, but also VOC, The emission of toxic and harmful substances such as benzene and formaldehyde is very large, which seriously pollutes the air and water environment, and also damages the integrity of the constructors. For the operation that often needs to change the construction point, the air compressor used in traditional air spraying is large and heavy, and the transportation of the equipment will also cause a lot of inconvenience and labor.
The HVLP spray gun or spraying equipment can greatly reduce fly mist and rebound (overspray), reduce paint and solvent emissions, greatly save spraying consumption, and at the same time keep the working environment clean and tidy, protect the atmospheric environment and the health of construction workers. In addition, the portable HVLP spraying equipment is also very convenient to carry, and it is easy to change the construction site frequently.
HVLP is the abbreviation of High-Volume Low Pressure, which means high-flow and low-pressure air spraying in Chinese. It is an environmental protection and paint-saving spraying standard formulated by the US Environmental Protection Agency (EPA). The introduction of HVLP technology into the market in the 1970s in the United States attracted the attention of the US Environmental Protection Agency's Air Quality Management Committee and finally gave the final definition of HVLP technology in the 1980s. rate) must be higher than 65% (for example, the transfer efficiency of a certain HVLP environmental protection spray gun and sprayer is as high as 83%); the air outlet pressure at the nozzle is equal to or less than 10PSIl (about 0.68 kg/square centimeter), and has been authorized by the US Environmental Protection Agency. Organization identification can be called HVLP spraying equipment.
Now, due to the first-class spraying quality, super portability, economy, and environmental protection of HVLP spraying equipment, most of them use HVLP in fine spraying on foreign sites, such as automobiles, airplanes, yachts, furniture, cabinets, sanitary ware spraying, etc. Spraying equipment can not only obtain high-quality surface effects, but also save a lot of paint consumption, which reduces the unit cost of construction by about 50% and is convenient and fast.
