Waterproof coatings are not waterproof and pose a safety hazard

If you buy inferior waterproof materials when you are renovating, or if the waterproof layer is not good, it will definitely bring great impact to your life or work. The wall skin is already wet and moldy, and some wall skins have been watered. Erosion, falling down in blocks, the cement wall is directly visible in the eroded wall. The waterproof material used many years ago has already failed, and the tile of the entire wall has fallen off. There were even cracks in the upper part of the wall, and newspapers were stuffed in the middle.

A merchant recommended three kinds of waterproof coatings to reporters: one is polyurethane waterproof coating, the price of 20kg is 300 yuan; the other is acrylic waterproof coating, the price of 20kg is 230 yuan; the other is JS waterproof coating, the price of 20kg is 180 yuan. From the samples of the three coatings, their elasticity and flexibility feel different. One of the merchants told reporters that if the waterproof coating is used on a large scale, it is best not to choose a brand that everyone is familiar with, because the paint is sold well, and there are many counterfeit fakes on the market. It is easy to accidentally encounter it. In addition, there are many fakes in the "SBS" waterproofing membrane sold on the market.

A Mr. Chen, who is engaged in architectural design, told reporters that a major reason for the difficulty in controlling the quality of building waterproofing is subcontracting, which is prone to building quality problems. In addition, in some bidding companies, in the bidding enterprises, many purchasers do not set a threshold for saving money, and tend to adopt the “lowest price bid” standard. After successful low-price bidding, in order to earn more profits, the materials are shoddy, and the production and sale of counterfeit and shoddy products is easy to leave hidden dangers to the quality of the project.

The quality supervision department reminds consumers to purchase and use waterproof materials, first of all must pay attention to the product instructions, understand the use of the occasion, the scope of application, etc., select the right product for construction. It is not advisable to use goods with rough outer packaging, skewed container shape, and instructions for printing. And try to go to the formal construction market or supermarket to buy

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