Guangzhou quality supervision spot checks to 1 batch of waterproof paint product quality is not qualified

In the fourth quarter of 2014, the Guangzhou Municipal Bureau of Quality and Technical Supervision conducted a supervision and spot check on the quality of
waterproof coatings
products in the production field of the city, and conducted spot checks on 11 batches of products produced by 11 enterprises, and 1 batch of products tested by 1 enterprise did not meet the standard requirements.
This spot check is based on the national mandatory standard GB/T 19250-2003 "polyurethane waterproof
coating
", GB/T 23445-2009 "polymer cement waterproof coating" and other standards, marking, stretch strength, insolability, fracture elongation, solid content, drying time, etc.
main non-conforming items and situation analysis
stretch strength: this spot check has a batch of products unqualified. Stretch strength is the most basic physical performance item of waterproof coating products, and its index can directly reflect the performance of the product. The main reasons for these items are low polymer content and unreasonable formulation.
waterproof materials are widely used in civil buildings, utilities and other projects. There is a lot of rain and humidity in the south, and if the waterproofing project does not pass, it will affect the quality of the building and thus affect the safety of people's lives. Consumers should try to buy such products in the formal large-scale building materials market to buy a better reputation of the brand, while checking the product and its packaging whether there are instructions for use, whether the logo is complete.