Pressing strip: The window material and main materials, such as steel, aluminum alloy, steel, and wood, mainly control the size of the gaps in the glass groove, block the glass, and prevent the glass from falling off. Due to the use of waste materials, substitutes, and high filling capacity, low-end PVC products have poor elasticity, are prone to hardening, have an unpleasant odor, are easy to migrate, have a yellow frame material, and have a short service life. Some door and window companies are still using it in low price competition. The high-end PVC rubber strip meets the standard target and has a relatively long service life. Due to the presence of halogens and heavy metals in polyvinyl chloride products, it is not conducive to environmental protection. Sealing glue is a type of sealing glue developed based on the introduction of technology and independent research and development in China in recent years. It is mainly used in automobiles and has been used in buildings in recent years. Its prominent advantages are: The performance and service life are similar to those of vulcanized seals. (2) The processing energy consumption is lower than that of vulcanized rubber tape (PVC phase). (3) It does not contain heavy metals such as halogens and lead, and after years of recycling, it meets the requirements of green building materials. (4) Low gravity (only 0.9-0.95), high window rate. The purchase price is high, but the actual usage cost is low. Production feature 1) Lightweight, highly flexible, and non absorbent (replacing traditional three oil and four felt), Cedar boards and other materials. This product is environmentally friendly, easy to install, and has good anti-seepage, leak proof, and waterproof effects. 2) Corrosion resistance, aging resistance, high temperature+80-45, no flow, no deformation, easy to crack, long service life. 3) Has an independent open bubble structure. The appearance of special plywood is a uniform distribution of honeycomb holes. It can be used with cement without hair. / Tightly integrated, adaptable to natural expansion and contraction changes, enhancing the expansion resistance effect of the seam seal. Three. vulcanization Sealing strips are more durable and flexible than PVC rubber strips. However, due to the need for microwave vulcanization lines, the processing energy consumption is relatively high, generally more than 20 times that of PVC processing. The product cannot be reused and is not environmentally friendly. It is not a product advocated by the state. In addition, the proportion of the product material (greater than 1.4) is equal to the proportion of PVC (low-end vulcanization). The proportion of rubber rods is relatively large. The window opening rate is similar to that of PVC rubber strips. The high cost of use makes it difficult for door and window companies to accept.
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