Sealing strips are made of rubber and are mainly used in fields such as automobiles, machinery, doors and windows. Mainly used for the connection between glass and beads, glass and frame fans, frame fans and fans, fans and fans, etc. It can prevent leakage or intrusion of internal and external media (rainwater, air, dust, etc.), Prevent or reduce damage caused by mechanical vibration and impact, thereby achieving the functions of sealing, sound insulation, heat insulation, and shock absorption.

Door and window sealing strips are usually black rubber materials, commonly found at the edges of doors and windows, as well as elastic strip or rod materials at the connections between glass and pressure strips, glass and frame sashes, frame sashes and sashes, and sashes and sashes. It can block water, wind, sound, and temperature, and prevent mechanical damage caused by metal collisions, therefore it has the functions of sealing, sound insulation, heat insulation, and shock absorption.

Therefore, as a key component of doors and windows, it should have sufficient tensile strength, good elasticity, good temperature resistance, and aging resistance to ensure a good user experience and comfortable home experience. Therefore, its cross-sectional structural dimensions should not only match the door and window profiles, but also have sufficient strength and durability.

So the quality of sealing strips for doors and windows determines the quality of a window, so many doors and windows have made great efforts to choose high-quality sealing strips in this regard.

How to distinguish the quality of sealing strips?

Distinguishing between genuine and fake sealing strips is quite simple. The following methods can help you distinguish between good and bad sealing strips without the need for tools.

1、 Firstly, smell with your nose. Normal sealing strips have no odor, or the steel leaves the factory with a natural rubber smell.

2、 Wrap the sealing strip around the profile and expose it to sunlight for a period of time. Check for any dirt or stains on the profile and inspect the surface of the sealing strip for yellowing and greasiness.

3、 If the cross-section of the tape is bright and similar in color to the surface, it means there is not much filler.

4、 Hold the tape in your hand and pull it with force. If it is not easy to break when held in hand and has good stretchability, it indicates good quality and will not deform even after long-term use.

5、 Scrape the nail sealant strip. If the material is not good, it is easy to produce white. This kind of tape cannot withstand collisions. Once something hard hits or scratches, the sealing strip will lose its beauty.

Product characteristics of door and window sealing strips

1. Light bulk density, high expansion and contraction strength, non absorbent (replacing traditional materials such as three oil four felt and asphalt cedar board). The product is environmentally friendly, easy to construct, and has good anti-seepage, leak proof, and waterproofing effects.

2. Corrosion resistance, aging resistance, high and low temperature resistance+80 ℃~-45 ℃, no flow, no deformation, no brittleness, long service life.

3. It has an independent open cell bubble structure, and the specially designed joint plate has uniformly distributed honeycomb holes, which can be tightly bonded with cement/sealant without being roughened to adapt to natural expansion and contraction changes, enhancing the expansion and waterproofing effect of joint sealing.