Anyone who makes a high-efficiency air filter knows that polyurethane is needed between the filter paper and the metal frame of the filter. PolyurethaneABglueto bond and seal. However, you may find that the glue from some manufacturers has an odor after use, and may even cause serious complaints from customers. So why is this? How long does it take for the smell of air filter glue to completely dissipate? The author will introduce it to you in detail.
1. Air Why does filter glue smell?
Actually glueSmellYesis divided into two parts, one is the smell before curing, 二It is the smell after curing. Normally, the polyurethaneab glue used in air filters is still there before curing. When in liquid state, there must be some smell, because polyurethane adhesive is Chemical products, chemical products will more or less contain certain font>Raw materialsTaste,This is a normal phenomenon. The smell of good glue will disappear after it is completely cured and will not have any impact on later use. Of course, some air filter glue will still smell after curing. The author even contacted a customer before. His air filter had a strong smell and was complained to the hospital when it was sent to the hospital. He made compensation and later found out that it smelled like glue. . So what could happen? In fact, in order to reduce costs and occupy the market at low prices, some unscrupulous merchants add inferior fillers for production, resulting in a strong smell of glue produced. Although the price is cheap, the quality is very poor, which not only fails to meet the requirements of environmental protection, but also Other properties such as adhesion and color are also poor.
2. How long does it take for the smell of air filter glue to completely dissipate?
Regarding this issue, in fact, as the author said above, no matter what kind of air filtration Appliance glue will definitely have an odor before curing. It is the smell of the raw materials of chemical products themselves. However, for good air filter glue products, the smell will completely dissipate after curing. Generally, the complete curing time is 1~2 hours, so basically there will be no smell after 22 hours. However, low-priced and low-quality products will still have a pungent smell after curing. This smell does not come from the raw material smell of polyurethane glue, but from the added low-quality filler, which cannot be dissipated. Therefore, when choosing an air filter glue manufacturer, you must choose to cooperate with a manufacturer that guarantees quality and quantity. Quality must be the first priority, and price is the last thing to discuss. Don’t blindly be greedy for cheap. If something goes wrong later, in fact, I am afraid that the losses will be far from being recouped by being greedy for cheap. I believe everyone understands this truth. For example, the customer mentioned above by the author who was complained about the smell later changed his supplier and used filter glue from Shanghai Weigu Company, which solved the problem very well and has not been complained by his customers again.
AboutHow long does it take for the smell of air filter glue to completely dissipate? The author will introduce it to you here. I believe it will be helpful to you. If you want to know more about the air filtration industry and For knowledge about the polyurethane glue industry, you can follow the author.
Title of this article: How long does it take for the smell of air filter glue to completely dissipate
Source of this article: http://www.wellgo.com.cn/newb/information_2387.shtml
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