The difference between waterproof and water-repellent, how do they indicate the number of levels?

Today, the editor of Zhongshan tarpaulin manufacturer ZHONGSHAN LINYANG PLASTIC CO.LTD will take you to see the difference between waterproof and water-repellent. How do they indicate the number of stages? Water repellency, also known as water repellent, is 'WATER RESISTANT' in English, which is achieved by coating in most cases, usually on the outer layer of the fabric. It means that the surface of the fabric has a very low surface tension. After the water droplet falls, it is very large relative to the surface tension of the fabric, which causes the surface of the water droplet to shrink and cannot be spread out in a spherical shape, so it quickly becomes a water droplet. Slips off the fabric. Waterproof, English is 'WATERPROOFIn terms of specific performance, it can be distinguished from two aspects: 1. Waterproof products should be more durable than water repellent products. The physical and chemical properties of plastic tarpaulins are more stable, and 'waterproof' products usually do not fail due to washing and long-term use. 2. Waterproof products should have higher water pressure resistance index than water repellent products, usually at least 3000MM or more. Applied to the specific function of clothing, the main function of water repellent treatment is to reduce the absorption of water by the fabric, so that the water can be 'pulled away' on the surface of the fabric. The water repellent treatment is a completely impermeable barrier that keeps water out, whether or not the fabric absorbs it. Waterproof products are to be tested for water pressure resistance and water-repellent is to be tested for rain. The latter is generally not coated. It is a super water-repellent adjuvant whose adjuvant is mainly an organic fluorine compound. To buy plastic tarpaulin, go to ZHONGSHAN LINYANG PLASTIC CO.LTD. Keywords: Zhongshan tarpaulin, pvc tarpaulin, plastic tarpaulin

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