What are the characteristics of the exterior wall panel for the purchase of polyurethane exterior wall panels?

For the winter in the north is cold and bitter, so people living in the north will use the outer wall insulation board to protect their house when decorating the house. But the external wall insulation board we all do not know very well about its characteristics, so it is very doubtful when buying. Polyurethane siding is just one of the insulation boards. What is its characteristic? Today, Xiaobian will take a look at the purchasing techniques and features of polyurethane siding.


Polyurethane siding features:

1. The polyurethane board can still have the elongation and resilience of rubber in hardness, and the hardness range is extremely wide;

2, the polyurethane board has a high strength, its strength is higher than the rubber;

3. The polyurethane board is a kind of strong polar polymer compound, which has low affinity with non-polar mineral oil and is hardly eroded by fuel oil and mechanical oil;

4. The oxygen and ozone resistance of polyurethane are very good;

5, polyurethane has good mechanical and processing properties, whether it is car, grinding, etc.;

6, Polyurethane sheet high-energy radiation performance is very good, with radiation resistance;

7. The polyurethane board has good low temperature performance;

8. The polyurethane plate has excellent vibration absorption performance and can play the role of vibration damping and buffering. It replaces rubber and springs in the manufacture of molds.

Advantages of polyurethane siding:

1, with moisture and water resistance. The rigid polyurethane has a closed cell ratio of more than 90%, and is a hydrophobic material. It does not increase the thermal conductivity due to moisture absorption, and the wall does not seep.

2. Due to the excellent thermal insulation properties of the polyurethane sheet, the thickness of the outer protective structure of the building can be reduced by increasing the thickness of the building.

3, fire retardant, high temperature resistance, strong resistance to deformation, not easy to crack, stable and safe finish. Polyurethane is a flame-retardant self-extinguishing material after adding a flame retardant. Its softening point can reach above 250 degrees Celsius, and decomposition occurs only at higher temperatures. In addition, the polyurethane will form carbon deposits on the surface of the foam when it is burned. This layer of carbon helps to isolate the underlying foam and effectively prevents the flame from spreading. Moreover, polyurethane does not generate harmful gases at high temperatures.


Polyurethane siding buying skills:

1. Look at the quality of wall tiles after visual effects.

The wall tile products with high brightness are pure in color, not easy to hang dirty and dirt, easy to clean and self-cleaning. Under the strong light, the wall brick can be carefully observed from the side to reflect the appearance of the product. There are no small blisters and pitting or blisters and pitting. The products with high brightness index adopt high-quality glazed materials and very good glazing process. The reflection of light is good and average, so that the visual effect is good and the product level is high.

2. Discriminated by touch and knocking

When choosing a wall tile, you can use your hand to sneak in the outside and feel very flat and delicate. It is also possible to touch the opposite side, and the wall bricks feel that there is a slight frictional feeling of “sand sand”. For the same specification products, the bricks with good quality and high density are more like sinking. On the contrary, the quality of the products is lighter.

3, can tap the ceramic appearance by hand

The sound of ordinary ceramic materials is relatively loud. Moreover, if the sound is thick and the echo is long, such as the sound of a bronze bell, the wall tile joins with high porcelain level, strong wear resistance, high flexural strength, low water absorption, and is not easily contaminated; if the sound is dumb, porcelain is formed. Low level (and even cracks), poor wear resistance, low flexural strength, high water absorption, and high vulnerability to contamination.

It is worth mentioning that polyurethane sheets have a long service life. The average life of the rigid foam polyurethane insulation structure can reach more than 30 years under normal use and maintenance conditions. The above is the editing skills and characteristics of the polyurethane siding board introduced by Xiaobian today. It is over here. If you want to know more information, please continue to pay attention to the decoration home.

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