Door and window PVc sealing strips

一、Function of sealing strips:

Sealing strips play an important role in waterproofing, sealing and energy saving in doors and windows. In order to better soundproof, dustproof, freeze-proof, and keep warm, it must have strong tensile strength, good elasticity, and relatively good temperature resistance and aging resistance.

二、Material of upvc sealing strips:

Door and window sealing strips on the market are generally extruded from PVC, modified PVC, EPDM, elastomer sealing strips (including TPV, TPE, TPR, SEBS), silicone and other materials.

三、How to choose door and window seals?

1. Smell

Use your nose to smell if there is any peculiar smell.

2. Pull with hands

Take a sealing strip and tear it at its thinnest part. The greater the force, the higher the glue content, which means that the overall performance of this sealing strip is very good, so you can consider purchasing it.

3. Scrape with fingernails

Sealing strips made of poor material have low glue content. After this kind of sealing strip is installed on the door, scratches will appear as long as there is a collision with a hard object or a slight scratch, which is very unsightly.

4. Observe the surface

Some cheaper sealing strips have a lot of filler, so the surface will not be very bright. Then look at the cross-section joint of the sealing strip to see if the brightness is close to the surface color of the sealing strip. If it is close, it means that the sealing strip material does not contain much filler and can be purchased.