With the development of the industry, the sealant strip for doors and windows has been improved better. From rubber and plastic, PVC strip, which were cheap at first, it gradually changed to the application of EPDM adhesive strip. EPDM rubber strip has good elasticity, heat resistance, low temperature impact resistance and aging resistance.
At present, sealant strip products used to replace EPDM in the market have appeared and have been applied to engineering practice. It is polyurethane foam sealing strip, commonly known as I-ECO coated sealing strip. This material has the function of aging resistance and environmental protection, and is an upgraded high-grade sealant strip.
Rubber and plastic materials, EPDM, coated sealant strips, plastic steel door and window sealing strip are all good.
1. Rubber and plastic materials
Rubber and plastic is a kind of PVC. The processing equipment is relatively simple, and the investment is relatively small. The material is very easy to obtain. The finished product is rich in color and can be recovered. The operation rate is also very high, therefore, the total cost is relatively low. Rubber and plastic have the smell of plastic, and even the smell of Flushing Nose. Its elasticity, resistance and weather resistance are relatively poor, stretching will recover slowly in the future, and it is greatly affected by temperature.
2. EPDM
EPDM has many advantages such as very good ozone proof and oxidation resistance, good heat resistance and low temperature characteristics. In addition, it also has the advantages of comparing good electrical energy and outstanding stress-strain characteristics, etc. The product extrusion is also relatively stable, and the dimensional accuracy is very high. However, the colors of EPDM are compared one by one, and the self-adhesive and mutual adhesive functions are poor.
3. Coated sealant strip
This kind of sealing strip works very well, and is an international three-generation sealing commodity with energy saving and environmental protection. It is made of different materials such as thermosetting core and tough outer skin layer. It ensures the tightening and even deformation caused by the long-term application of the sealing strip in different environments. This kind of rubber strip has a relatively significant effect of sound insulation and noise reduction and a very superior thermal insulation and energy saving.
4. Plastic steel door and window sealing strip
Plastic steel door and window rubber steal strip is a new generation of doors and windows that have been widely used in recent years. It has better corrosion resistance and weather resistance than the sealing strip of ordinary doors and windows, and has the function of noise reduction and heat insulation. The appearance of this plastic steel door and window rubber steal strip is very bright, which not only has a very good sealing and waterproof function, but also has the function of beautiful decoration.
Door and window rubber steal strip quality distinction:
1. Present the appearance of oil seepage and analysis. Those waste oil roots and PVC are not dissolved together. The appearance of the sealing strip is very simple, showing grease, and the appearance of the profile is also stained with yellow marks. Even if it is not environmentally friendly, there are many transpiration substances that pollute the air.
2. When the so-called plasticizer transpires or seeps out in the future, the sealing strip will lose its original softness, become very hard, and quickly age and shorten, some of the closed doors and windows show a large gap, and the tightness becomes very poor (water leakage and dust leakage). Especially, steel lining of the plastic steel doors and windows will soon be corroded, many users often find that many red liquid flowing out from the layering part of the window in the dry season is very dirty, that is, doors and windows are leaking steel lining corroded too early, and the life of doors and windows will greatly decrease.
