If you choose low-quality waterproof materials during renovation, or if the waterproof layer is poorly applied, it can significantly affect your daily life or work. Walls may become damp and develop mold, with some areas even showing water damage. The wall surface might peel off in chunks, revealing the underlying cement. The waterproofing material used years ago has failed, causing tiles to fall off entirely. In some cases, cracks appear at the top of the walls, with newspapers stuffed into the gaps as a temporary fix.
A local merchant introduced three types of waterproof coatings to the reporter: polyurethane waterproof coating, priced at 300 yuan for 20kg; acrylic waterproof coating, priced at 230 yuan for 20kg; and JS waterproof coating, which costs 180 yuan for 20kg. When comparing the samples, each coating had a different level of elasticity and flexibility. One merchant advised reporters that when using waterproof coatings on a large scale, it's better to avoid well-known brands. This is because popular products are more likely to be faked, increasing the risk of purchasing counterfeit items. Additionally, many fake SBS waterproof membranes are sold in the market, making quality control difficult.
Mr. Chen, an architect specializing in building design, explained that one major challenge in maintaining waterproofing quality is subcontracting. This often leads to poor construction outcomes. Moreover, some bidding companies prioritize cost-cutting over quality, opting for the “lowest price bid†approach. After winning the contract through low pricing, contractors may use substandard materials to maximize profits, leading to the production and sale of inferior products that can create long-term issues in construction projects.
The quality supervision department advises consumers to pay close attention to product instructions when purchasing and using waterproof materials. Understanding the intended use and application area is essential to selecting the right product for the job. Avoid products with rough packaging, misshapen containers, or unclear printing. It’s also recommended to buy from official construction markets or supermarkets to ensure reliability and quality. Always check the product label and consider the reputation of the seller before making a purchase.
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Ningbo Safewell Plumbing Co., Ltd. , https://www.safewellbrass.com