How to choose waterproof membrane
Fourth, the product price comparison
Waterproof membrane products, intense competition, fake rampant to the production market, the largest amount of SBS modified asphalt waterproofing membrane, for example, the best profits are super but 15%. On the market there are many high-priced SBS modified asphalt waterproofing membrane, the SBS content is very small, even without SBS, with waste rubber powder to replace. Therefore, when buying, try to avoid the selection of products significantly lower than the market price.
Third, from the physical quality of strict quality off
From the appearance of visual inspection can only distinguish the composite tire coil, but failed to solve the selected products meet the quality requirements, which requires users to have the ability to test the technical institutions, according to the corresponding product standards for soluble content The physical properties of the factory test, with the soluble content of the project to control the product contains the amount of asphalt and modifier, but also to reveal the product used in the real face of the fetus can determine whether it is consistent with the product mark.
Second, from the fetal base to identify the quality of the coil
Generally from the product on the cross-section of visual inspection, the specific method can be purchased products by hand to tear it, observe the cross-section exposed fetal fiber, composite tires tear after the section of the grid cloth ribs exposed, this time It can be concluded that the product must be a composite tire coil, what kind of composite tire membrane with physical properties test - soluble content test to observe the exposed fetal base. And simple polyester tires, glass fiber tires after tearing the section only polyester or fiberglass fiber exposed.
First, pay attention to product name and packaging logo
According to the product standard, the product packaging should indicate the name of the enterprise, product mark, production date or batch number, production license number, storage and transportation precautions, for the product mark should be strictly in accordance with the standard, consistent with the product name, Incomplete or unmarked. Users in the choice of these products, we must pay attention to product mark, recognize the product name, because the mark represents the identity of the product. Example: With polyester-cotton non-woven fabric - mesh cloth composite tire production of the coil, can only be named asphalt composite tire flexible waterproof membrane or composite tire coil, and can not name SBS coil, its product mark Can only be marked by compound tires.
