How did the rubber strip of this window shrink? Why is there dust inside this window? We come into contact with sealing strips because they have problems.

The rubber strip on doors and windows is inconspicuous, and some doors and windows even do not have rubber strips, but it has a great impact on the performance of doors and windows. It affects the sealing performance of doors and windows, the appearance of doors and windows, the energy-saving effect of doors and windows, the opening of hardware, and the sound insulation of doors and windows. Therefore, its role is still significant. The basic function of sealing strips is sealing ability. If the sealing ability is poor, it will affect other performance, such as energy saving, opening matching, appearance, sound insulation, etc.

Nowadays, the sealing strips on doors and windows are mostly EPDM rubber strips, abbreviated as EPDM, a rubber copolymer. Its advantages are wide temperature resistance, strong corrosion resistance, and good aging resistance. The temperature resistance range is wide, and doors and windows do not change much under such a large temperature difference between winter and summer, which will not affect the performance of doors and windows. Good corrosion resistance ensures that the rubber strip itself does not affect the corrosive gases in the air, thus not affecting the sealing performance. Good aging resistance indicates that years of exposure to sunlight and ultraviolet radiation have little impact on it.

The rubber strip on doors and windows usually has three seals from the outside to the inside, and the seals at the outermost and innermost are mostly partially broken. Therefore, the truly complete seal is one seal, which is the large sealing strip in the middle. EPDM sealing strips can be made in the form of foam co extrusion. The large rubber strip in the middle, which plays a key sealing role in doors and windows, is generally made in the form of foam co extrusion to ensure the compression and overlap of the seal, further enhancing the sealing effect.

The EPDM sealing strips produced by Linqu Ruixing Plastic Products Co., Ltd. have undergone professional laboratory testing. To ensure the quality of our products meets the standards, our company has established a quality testing center to ensure that every produced strip is a good one.

Our company's main product is EPDM sealing strips, and the registered trademark is "Rising" brand. The main function of EPDM door and window sealing strips is to seal and fix doors, windows, and curtain wall glass. The main raw material is EPDM original rubber. The company has always used imported EPDM original rubber produced by world-renowned companies DSM in the Netherlands and DuPont in the United States. The carbon black used is a product from German Guisai Chemical Co., Ltd. Other auxiliary materials are also selected from domestic legitimate companies. We do not seek low prices but only good quality.

The advantages of EPDM rubber strips are stable product performance and good usability. Anti aging and corrosion resistance. The physical indicators such as UV resistance, stretchability, and aging resistance of the product remain basically unchanged under the conditions of -40 ° C to 160 ° C. The EPDM rubber strip has been used for 20 years without deformation, looseness, aging, air permeability, air permeability, or water leakage. It is an ideal environmentally friendly product for heat, cold, insulation, and cleaning, in line with the contemporary people's awareness of energy conservation and cleanliness.

The "Rising" brand EPDM sealing strips produced by our company have undergone multiple inspections by the quality inspection department, and all indicators are higher than the national standard, including tensile strength/Mpa national standard; 7.5, the company's product testing is 7.9, and the elongation at break is in accordance with national standards; 300, the company's product testing is 530, and the tensile strength retention rate meets the national standard; 80, the company's product testing is 94; National standard for elongation retention rate; 70, the company's product testing is 72; The national standard for hardness is 60± 5. The product testing is 58. The company provides a 20-year quality assurance certificate for its EPDM sealing strips.

There are many types of sealing strips, including TPE, natural rubber, polyurethane coated rubber strips, silicone rubber, nitrile rubber, etc. Sealing strips have a wide range of applications, from high-tech aerospace to transportation vehicles, trains, and sealing rings for pressure cookers. Although we don't pay much attention to it on doors and windows, its role is significant and needs to be taken seriously. It can be said without exaggeration that it is the key to the performance of doors and windows. We must pay attention to using good sealing strips when choosing doors and windows.