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Many of its raw materials are obtained by recycling rural waste plastics. Its thickness and quality are very poor, and it is difficult to meet the standard requirements. Moreover, limited by the chemical characteristics of polyethylene film, its heat resistance is very poor, and it will be permanently deformed at 80 °C; its aging resistance and ultraviolet resistance are also very poor, and it can rapidly age in an exposed environment, and it will take only one month. It will be brittle or even powdered. The premise of waterproofing is that the waterproof material and the base layer are well bonded, while the polypropylene fabric can only be wet pasted by cement mortar. However, it is not bonded, but is wrapped by softer polypropylene fibers, which will cause local water leakage and lead to the phenomenon of water on the large surface.
The lap joint problem is inevitable in the construction of the coiled material. There are great risks in the closing and detailed treatment of the coiled material. It is necessary to prevent problems by means of hot melt strengthening treatment. In the kitchen, bathroom and pipe root, it is difficult to operate wet paste with cement mortar, and it is difficult to cover the entire interface with polypropylene.
What is the reason for the popularity of polypropylene cloth? . One of the biggest passion factors is the price! Compared with the existing waterproof coatings and high-quality waterproof membranes, the price of polypropylene fabrics is at least one-third cheaper, which makes the engineering team who contracted the materials see huge room for profit.
