Generally, when windows are not sealed tightly, dust enters, etc., window seals can solve these problems very well, but what skills do we have when buying? Let’s follow the EPDM sponge strip editor for a brief look!
1. Smell with nose. Use your nose to smell for any peculiar smell, normal PVC material will have a little mellow smell, almost invisible.
2. Look at the appearance of the profile and window seal. Wrap the window seal around the profile as tightly as possible, and leave it under high temperature (roof or in sufficient sunlight) for a period of time to see if the surface of the profile and the contact surface of the window seal will be stained and discolored, and whether the dust on the exterior is yellow Whether the hand is dirty or dirty with oil.
3. Look at window seal filler. Regarding some relatively cheap sealing strips, there are many fillers and the appearance is not very shiny, which is not desirable.
4. Look at the proportion. Many manufacturers have made great efforts in the use of fillers. In order to seek greater production value, they have chosen heavy calcium and talc as fillers, which greatly increased the proportion of sealing strip products, thus virtually increasing costs. Participate in the sealing strip of heavy calcium, stretch it back and forth several times by hand, and a small amount of white powder will appear on the surface.
To sum up, the editor of EPDM sponge strip tells: About the introduction of window seal skills and knowledge when purchasing, I hope you can learn more.