What happens to poor quality door and window sealing strips? And how to distinguish the quality? Let’s follow the EPDM sponge strip editor for a brief look!
1. Usage
1. There is oil release on the surface, waste oil roots and PVC do not dissolve at the same time, the surface of the door and window sealing tape is very short, and there are yellow marks on the surface of the profile. Even if it is not environmentally friendly, there are many sweating substances that pollute the air.
2. When the so-called plasticizer is steamed or exuded, the door and window sealing strip will lose its original softness, become very hard, and will rapidly age and shorten, so that a large gap appears in the sealing part of the door and window. The sealing performance becomes very poor (leakage, dust leakage), the steel lining of the special plastic steel doors and windows will quickly corrode, and many users often find that a lot of red liquid flows out of the windows during the dry season, that is to say, the leaking door and window linings Will be prematurely corroded, and the life of doors and windows will be greatly reduced.
Second, identify quality
1. Use your nose to smell whether there is any peculiar smell. Generally, PVC materials will have a little mellow smell, almost a small smell.
2. Try to wrap the sealing strip on the profile and place it under high temperature for a period of time (on the roof or in a sunny place). Check whether the contact surface between the profile surface and the sealing strip is contaminated and discolored, whether the dust on the surface of the sealing strip is yellow (oil easily absorbs the soil), and whether the hands are dirty.
3. Some cheap sealing strips will have a lot of packing, so the surface will not be very shiny, and the appearance of those cheap seals will not be shiny.
4. Look at the specific gravity. Many manufacturers, when using fillers for limbs, in order to obtain greater output value, they choose talcum powder, heavy calcium and other things as fillers, which greatly increases the proportion of sealing strip products (our users generally buy by kilogram, according to the length of use Calculation), so the increased cost is actually harmless. If you pull it back and forth several times with your hands, there will be a small amount of white powder on the surface of the sealing tape.
In summary, the editor of EPDM sponge strip tells: about the related knowledge of sealing strip, I hope you can learn more.