Buy waterproof material notes: 1. Look at the appearance: The surface of the coiled material should be smooth, with no holes, edges and cracks, and flaws. The tire base should be soaked. There should be no unsaturated streaks, no obvious oil leakage at the end, uniform thickness, and standing end. The Department shall have no apparent deformation, and the marks shall be complete. 2, by hand: hand bending, the normal temperature, the coil is flexible, does not produce cracks, and should not be brittle. 3. Flexible temperature measurement: Take 10 samples of 150mm x 25mm in the longitudinal direction of the coil, and place it in the refrigerator at the specified temperature for 2 hours according to the type of the mark. After bending, see if there is cracking or cracks. Good products do not crack. 4, than the price. Due to the quality of the base material, relatively low-priced quality is relatively poor, and tension and elongation may not meet the standard requirements. It is recommended to select some large-scale well-known manufacturers of products, although the price is higher, but the quality is relatively good.
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Waterproof material is an indispensable building material in the modern construction industry. At present, the types of waterproof materials on the market are quite varied. Different waterproof materials are generally used in different materials, and the waterproof performance is different. Of course, the requirements are different. The construction process is also different, so Xiaobian advises you to be more discerning when purchasing waterproof materials. Be careful when buying inferior products. What should you pay attention to when purchasing waterproof materials? Look at how Xiao Bian is for you!