Ningbo "Water-soluble polyvinyl alcohol adhesive" review began

After the completion of the housing, factory buildings and office buildings in Ningbo, put paint on the outside of the wall cement before applying the paint. The use of engineering putty is preferred because most units prefer the use of "water-soluble polyvinyl alcohol adhesives" to blend with other powders. However, domestic industry standards for "water-soluble polyvinyl alcohol adhesives" are not only not practical. Moreover, the construction company has a lot of opinions and all refuse to use it due to its high viscosity and difficult operation. As a result, there are non-standard products agreed upon by the supply and demand sides in the market, so the use of national standards for sampling will inevitably lead to extremely low rates of qualification. Last year, the Quality Supervision Bureau Inspection Office and the Quality Inspection Institute met with the City Coatings Association to conduct repeated discussions, and walked enterprises and held a forum to finally guide enterprises to guide the development of corporate standards. The principle of formulating is: l. All the indicators of high-quality products must be higher than the national standards; 2. The main indicators of qualified products can not be lower than the lower limit of the project's bond strength. 3, toxic indicators limit can not be lower than the national standard requirements. According to the above requirements. The members of the Ningbo Coatings Standardization Technical Committee carried out the preparation of instructions and indicators for verification, and then reviewed and discussed, organized expert reviewers, and finalized the guiding corporate standards. In order to unify ideas and practices, the company’s corporate publicity meeting was also held. So far, 20 companies have their own corporate standards. In order to consolidate the results, in June this year, the company reviewed the production of water-soluble polyvinyl alcohol adhesives. Re-examination requirements: Enterprises with corporate records are required to be tested according to the requirements of the corporate standards. Enterprises that do not have corporate records are tested according to the requirements of national benchmarks. For unqualified companies, penalties are imposed according to relevant regulations.