echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Coatings News > Paints and Coatings Market > China's current internal and external wall coating standards.

    China's current internal and external wall coating standards.

    • Last Update: 2020-09-29
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    China Coatings Network
    : At present, China's
    coatings
    testing standards are: synthetic emulsion
    exterior paint
    -GB/T9755-1995
    synthetic emulsion
    inner wall coating
    -GB/T9756-1995; GB/T18582-2001
    For the outer wall
    building coating
    , people are more concerned about the aging resistance of the coating, because the outer wall paint exposed to the atmosphere, subject to severe environmental testing, the need for good aging resistance, the national standard detection using xenon lamp artificial accelerated aging method detection. This method simulates the loss of paint due to changes in the weather environment, the current standard is: 200 hours of qualified products; For the interior wall building paint, people are most concerned about the paint wash resistance, the national standard is also the use of artificial accelerated testing methods, the current requirements of China's national standard is more than 300 times.
    addition, the detection indicators include the status in the container, construction, coating appearance, drying time, alkaline resistance, freeze-resistant melting, and coating temperature resistance and crack-resistant elongation.
    should say that the domestic testing standards are very low, much lower than the standards of developed countries abroad, such as: anti-aging in foreign countries generally require more than 500 hours.
    GB 18582-2001 (inner wall coating hazardous substances limit)
    1, the volatile organic matter (VOC) content in the product should be less than 200g/L;
    2, product production process, not artificially add compounds containing heavy metals, the total content should be less than 90 mg/kg (in lead);
    3, the production process should not artificially add formaldehyde and its formaldehyde polymer, the content should be less than 100mg/kg.
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Related Articles

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.