How long does a rain cover generally last?

Under normal circumstances, PVC rainproof cloth can exceed fifteen years. The service life of PVC mainly depends on the thickness of the wear-resistant layer (the relative density of the wear-resistant layer is also very important), followed by the thickness of the sewer pipes. and the integrated elements resulting from its use of the natural environment. Thickened green tarpaulin alias PVC tarpaulin plastic-coated high-strength polyester cloth moisture-proof cloth is based on high-tenacity polyester cloth canvas, coated with polyethylene (PVC) viscous epoxy resin, plus growth rate agent, mildew remover , Anti-aging agent, antistatic agent and other various chemical additives are melted at high temperature. With the characteristics of moisture-proof, mildew-removal, low-temperature resistance, anti-aging, anti-static, etc., Jinshuangxi can produce and process into various sizes, models and specifications according to the needs of customers. All sides are buttonholes, all handmade for free. According to CECS17-2000 'Technical Regulations for Buried Rigid Polyvinyl Chloride Water Supply Pipeline' and 'Building Drainage Rigid Polyvinyl Chloride Pipeline Installation' 96S341, it has been used in my country since 1997 and has been confirmed by experiments and basic theory. When the temperature of the drainage pipe is 40°C and the temperature of the drainage pipe does not exceed 80°C, it will ensure safe use under the long-term action of gas pressure for 50 years. However, the pvc pipe is afraid of embrittlement under the sun and damage due to impact force and thermal expansion and contraction stress under ultra-low temperature. Therefore, it is no problem to use it for 20 years. Today's pvc tarpaulins can generally be used for more than fifteen years. Buried in the ground (or in the wall) is generally no problem for life, and it is very easy to embrittle when exposed for fifteen years or so. The general service life of PVC is fifteen years under basic conditions, but some modified PVC materials, such as CPVC, etc., are better than the original in terms of compression and high temperature resistance, so the service life can be up to 25 years. .

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