Speaking of windows and doors, I believe that everyone is familiar with it, but most of my friends may not understand the accessories on the doors and windows. Such as door and window seals is one of them, it has sound insulation, dust, frost, warm and other functions. However, many door and window seals on the market are unqualified and will bring many hazards to our future life. So, how do we choose the door and window seal ? Let's take a look at the relevant knowledge.
First, what is the danger of poor door and window seals
1. The material of door and window seals used in the market is generally modified by PVC. The key role is the plasticizer added. The currently more stable plasticizers are dioctyl phthalate and dibutyl ester, but The market price is higher. So some unscrupulous manufacturers use some cheap things to replace: waste oil, oil refinery remaining oil base, etc., to the user buried a lot of hidden dangers. For example, it is not environmentally friendly, has a bad smell, and pollutes the air.
2, reduce the sealing. Poor quality sealants contain inferior plasticizers or substitutes, which tend to age and harden and shrink in the winter. Gap between glass and profiles causes water leakage and dust leakage. Many users often find out that the red liquid is flowing out from the bead inside the window of the rainy season, which is caused by the corrosion of the steel liner after the water enters between the window glass and the sealant. Not only greatly reduce the appearance of plastic windows, but also greatly affect the life of doors and windows.
Second, how to buy doors and windows sealed
1. Use the nose to smell if there is any odor. The normal PVC material has a little bit of mellow taste. It is very small and hardly smells.
2. Use a fingernail to seal the sealing strips. The sealing strips with poor materials contain low amounts of glue. The surface of the strips is easily scratched. After the seals are installed on the door, as long as there is a hard object collision or a slight scratch, it will Caused the seal to be "broken" and unattractive.
3, see the proportion. The same amount of door and window seals should feel lighter, and vice versa. Regular manufacturers generally use a small proportion of light calcium carbonate as a filler, and some manufacturers use talc, heavy calcium, to increase the proportion of products. Because sales are based on weight.
Third, what kind of door and window seals are better
1, PVC material: PVC material's anti-aging performance is still quite good, and even if the seal is used for a long time, it rarely occurs the phenomenon of surface yellow, daily life is more widely used.
2, TPV material: TPV material flexibility is a better one, after a professional design and research and development so that it is guaranteed in quality, the use of this seal effect is quite good. In addition, with the advancement and development of the current production technology, there are more new improvements in materials, so that they can be more in line with the needs of today's home life.
3, rubber: more durable, rubber itself is a relatively good material, both in terms of flexibility or design are relatively good, can effectively block some of the impact of the outside world. For our home life, rubber is used as a sealing strip for windows and doors, which can guarantee the service life.
The article concludes: Although the door and window seals look insignificant, they play a crucial role in the doors and windows. Inadequate doors and windows seals are not only environmentally friendly, but also cause harm to the family and pollute the air. Therefore, we must pay attention to details when shopping, oh, buy high-quality door and window seals Oh.
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Ink Rub Tester,Sutherland Rub Testet,Printing Rub Test,Using Astm D5264
Dongguan Hengke Automation Equipment Co., Ltd. , https://www.hengkeinstrument.com