Main characteristics of sealing strip

1. The price of modified PVC adhesive tape

Is relatively low. Due to different quality, the price is generally between 6000 yuan and 15000 yuan/ton. Low end products, due to the use of waste materials, alternative plasticizers and high filling amount, have poor elasticity of the rubber strip, are easy to harden, have a pungent smell, and are easy to migrate, which makes the frame material yellow and has a short service life. A few door and window enterprises in low-level price competition are still using. PVC adhesive tape can meet the standard indicators, and its service life is relatively long

Because PVC products contain halogen and stabilizers contain heavy metals, it is not conducive to environmental protection. Therefore, the use of PVC tape has been eliminated or restricted in foreign developed countries and domestic Beijing and coastal cities

2. Thermoplastic EPDM rubber sealing strip

This sealing strip is a new material developed on the basis of foreign imported technology and domestic independent research and development. It is mainly used for car door and window sealing strips, and has been used for building door and window sealing strips in recent years. Its outstanding advantages are:

① The performance and service life are equivalent to those of vulcanized EPDM sealing strips

② The processing energy consumption is lower than that of vulcanized EPDM tape (equivalent to that of PVC)

③ It does not contain halogen, lead and other heavy metals, and can be recycled after several years, meeting the requirements of green building materials

④ The specific gravity is small (only 0.9-0.95), and the window exit rate is high. It seems that the purchase unit price is high and the actual use cost is low

Product characteristics. The product is environment-friendly, easy to construct, and has good anti-seepage, leakage prevention and water stop effects

⑤ Corrosion resistance, aging resistance, high and low temperature resistance+80 ℃~- 45 ℃, no flowing, deformation, embrittlement and long service life