Shanghai Bureau of Industry and Commerce to carry out quality monitoring 14 batches of paint products are not qualified.

China Coatings Network
News:
Recently, the Shanghai Municipal Bureau of Industry and Commerce actively organized forces on some building materials supermarkets, shopping malls, integrated trading market sales of 60 batches
built-in paint
,
waterproof paint
carried out quality monitoring. After testing, there are 14 batches of non-conformity, of which, the inner wall
coating
6 batches, waterproof paint 8 batches, non-conformity rate of 23.3%. Inner wall paint non-conforming items are wash-resistant and ratio, waterproof paint unqualified items are impermeable, stretch strength, fracture elongation and so on. First, wash-resistant unqualified, there are 6 batches, the ratio is not qualified, there is 1 batch, of which, the above two indicators are not qualified at the same time, there is 1 batch. Wash resistance and ratio are two important technical indicators of interior wall coating, the indicator is not qualified, the inner wall paint is not resistant to scrubing, poor cover effect, lack of due protection, decorative function. For example, Shanghai Jiading District Jiangqiao Town Hongfangsheng Building Materials Management Department in Shanghai Haomei Residential Building Materials Market sales of the "Yongxin" brand synthetic resin emulsion inner wall coating (model specifications: ultra-white inner wall; production date: none), wash-resistant measured value of 15 times (the national standard stipulated minimum not less than 300 times), the quality of goods is very poor. Second, is not permeable unqualified, there are 3 batches. Impermeability refers to the performance of waterproof coatings in a certain amount of water pressure and a certain period of time without leakage, it is the most important quality index of waterproof coatings. Monitoring found that Shanghai Xinsheng Trading Co. , Ltd. in Shanghai Jianming Meijia building decoration materials market sales of the "Bull Yuan" brand polymer emulsion produced by Shanghai Niuyuan Industry and Trade Co., Ltd. building waterproof paint, measured samples can not be filmed, water penetration and other indicators can not be detected, poor quality, completely lost the use of waterproof coating function. Third, the stretch strength is not qualified, there are 4 batches; Stretch strength and fracture elongation are the two main mechanical performance indicators of waterproof coatings. Waterproof coating after film must have a certain strength and extension, in order to have a better masking effect on the cracks of the grass roots, even if the grass roots due to external temperature difference, dry and wet and other factors to produce small cracks, coating film will not break and leakage phenomenon, to ensure waterproof effect. Monitoring found that the Shanghai Putuo District Dingfeng building materials store in the Jinji building materials market sales of the "Langqiao" brand polyurethane waterproof coating produced by Shanghai Quanshi Waterproof Materials Co., Ltd., stretch strength measured value of 0.43MPa (standard value should be 1.90MPa), fracture elongation measured value of 10% (standard value should be 450%), very poor quality. Fourth, low tenderness is not qualified, there are 4 batches. Low tenderness reflects the flexibility maintained by waterproof coatings at low temperatures, the indicator is not qualified, waterproof coatings after film temperature resistance is poor, easy to produce cracks, loss of waterproof effect. In addition, some waterproof paint packaging labeling irregularities are still more serious, some commodities are not marked in accordance with the standard component ratio, individual products are not marked product models. Consumer reminder inner wall paint recommends the purchase of
latex paint
1. When purchasing paint, you should check the packaging identification, such as product model, product standard number (including type and quality grade), net content, production plant name and site, production date and batch, Effective storage period (shelf life), product certification, brief use instructions and precautions, etc. , purchase must be in the shelf life, such as open after the discovery of mold, condensation, lumps, precipitation and other phenomena, indicating that the paint has gone bad, can not be used. Second, according to the use of the environment correctly selected paint, such as kitchen, bathroom and other wet parts should be selected waterproof, mold-proof, easy to wash paint, other walls should choose good decorative effect, fine coating, not easy to powder, scrub-resistant paint. Inner wall coatings are recommended for the purchase of synthetic resin emulsion interior wall coatings. The inner wall coating can be divided into water-soluble resin interior wall coating and synthetic resin emulsion inner wall coating (commonly known as latex paint). Water-soluble resin interior wall
coat price
cheap, non-toxic, odorless, easy to build, but water-resistant, alkali-resistant, easy to peel off after moisture coating, easy yellowing, more used in low- and medium-grade room or temporary room; Waterproof coatings recommend the purchase of environmentally friendly waterproof coatings. A small amount of polyurethane waterproof coating on the market for tar-type, containing solvents, odor, although the price is lower, but will long-term dissemination of harmful odors, harm to human health, it is recommended to choose better quality, environmental protection tasteless waterproof paint, such as: solvent-free polyurethane waterproof coating, polymer cement waterproof coating and polymer emulsion building waterproof coating.