When decorating, most people like to seal the balcony, install doors and windows, then make the balcony a mini and compact viewing and leisure area. However, during the installation of doors and windows and the sealing of balconies, if you do not pay attention, problems such as water leakage, air leakage, and noise after moving in will all come to you. In this issue, I have summarized the "Four Window Sealing Artifacts" for your reference when purchasing.

Transparent tape

It is generally believed that the purpose of transparent tape on the glass window is :

1.  Increase the strength of glass

2.  Reduce small pieces of debris after glass shatters

But it can also be used for windproof windows. In winter, the wind is so strong that if the window is not sealed enough, air leakage may occur. At this time, find the place where the air leaks, wipe the dust off the place that needs to be adhered, and then stick the tape to block the wind. The adhesive force of the tape is good and it is not easy to fall off. However, the use of transparent tape to seal warm and windproof is average, and also look not beautiful. After a long time of sticking, it is not easy to tear off and will leave sticky marks, so it is not recommended.

Foam tape

Foam strips are used for tasks such as sealing, insulation, ventilation sealing, cushioning or protection, and sound insulation. These strips are designed to improve the overall performance and effectiveness of the product while enhancing the appearance of the design. It is suitable for a wide range of industries including automotive, construction, manufacturing and electronics. Products in these industries have a variety of uses, but it is a versatile adhesive that can serve a variety of uses in a variety of environments. For example, in the automotive industry, foam strips can be used to seal doors and windows, as well as more specialized applications such as gluing signs to parts. It can also be used in construction as a door and window seal, as a windproof tape, plug any gaps and as a simple weatherproofing solution. But in fact, the windproof and warmth retention of the foam tape is average, and it is easy to fall off if it is not sticky, and it is easy to leave sticky marks. So it is not recommended to use .

The last two are sealants and sealing strips, which are also the two most controversial sealing artifacts on the market. So which one is better? Next, I will explain which one has more outstanding performance through comparison.

Which is better, sealant or sealing strip?

Taking 80% of the mainstream doors and windows in China as an example, the original intention of the research and development of German windows and Italian windows with European standard C grooves is to solve regional problems. The average annual precipitation in Germany is about 800, and the annual minimum temperature reaches from -10 to -15 degrees Celsius, the marine climate door and window solution is mainly based on sealing strips. There are two main reasons:

1. The clearance and height of the drainage channel and the isobaric cavity are the design scheme for the rainfall limit value of 1500-1700. (Of course, the calculation of positive wind pressure and negative wind pressure is also done)

2. After laboratory tests, the temperature is -9 degrees Celsius, and the thermal expansion and contraction ratio of the silicone rubber has a 1:3 expansion and contraction change, which happens to be -10 degrees Celsius in Germany. There is a possibility of cracking.

The sealing strip has always been the first choice for German windows. To give a very intuitive example, the use of hidden frame curtain walls is expressly prohibited in Germany because of the need for sealant. So back to the 80% mainstream doors and windows mentioned above, the doors and windows of these companies are all products of the original German and Italian systems, so is it better for choosing sealants? The answer is no. There is a problem of annual average precipitation here. Many domestic precipitations in the south of the Yangtze River exceed 1500, and even more than 2000. The German and Italian window drainage channels and isobaric cavity gaps are based on 1500-1700. The theoretical value is developed. This value is the limit value, that is to say, the positive and negative wind pressure caused by continuous rainy days and strong winds should be taken into account. Don’t forget that Germany is about 800, which means that if water seeps, cities with a lot of rainfall will There is a possibility that the water cannot be drained out. And now the German and Italian windows have arrived in China, and it has been more than 20 years, and the change is not much. Since 1997, Rocco sold the set of drawings to 13 profile factories and hundreds of them. After imitating it, the domestic window. It has already been finalized, but nothing has changed: the arms, the amount of overlap, the spacing between the frame and fans. The only thing that has changed is the hinge channel, even the 14.8 heat insulation strip that Technoform provided for the set of Rockdie's drawings, which have been used by everyone for more than 10 years before some companies have changed, and they have the blood of the original German system in their bones. The whole set of solutions solves the marine climate, -10-25 degrees Celsius, and the annual rainfall is 800%. And if you are the 80% German-Italian window, the general direction is to use sealing strips to the north of the Yangtze River, and use sealant to the south .