Performance and industry standards for architectural coatings

China Coatings Network
News:
Building Coatings
is a film-forming materials, pigments, fillers, solvents and other materials manufactured by a certain process of products, for buildings and other structures, exterior wall decoration and protection.
China's construction
coatings
production has maintained a decade of rapid growth, with a compound annual growth rate of 22.0%, in 2010 the total output reached 3.5182 million tons, ranking first in the world. However, the size of enterprises is generally small, annual output of more than 5000 tons of large enterprises less than 3%, high-end market is basically occupied by imported products, wholly foreign-owned companies and several private enterprises.
, China has issued the implementation of various types of building coatings product standards 12, safety standards 4. The more important standards are GB/T 9756-2009 "synthetic resin emulsion
internal wall
"; JG/T 210-2007 Primer for The Interior and Exterior Walls of the Building; JG/T172-2005 Elastic Building Coatings; GB 18582-2008 "Limits of harmful substances in interior wall coatings of interior decoration materials"; GB 24408-2009 "
of harmful substances in
buildings and exterior paints"; GB/T 23994-2009 "Limited amount of specific harmful elements in coatings for consumer products in contact with the human body"; HJ/T 201-2005 Environmental Mark product technical requirements
water-based
.
2001-2014, the State Administration of Quality Supervision and Inspection has organized and carried out a total of 14 spot checks on synthetic resin emulsion interior wall coating products for 14 consecutive years. The main problems found in spot checks are free formaldehyde content, heavy metal content, ratio, wash resistance and low temperature stability.
formaldehyde has anti-mold function, and low price, production enterprises in order to reduce costs, do not use low-toxic compound anti-mold agent and formaldehyde solution, resulting in hot season free formaldehyde content exceeds the standard (greater than 100mg/kg), and free formaldehyde has a higher toxicity, easy to damage human tissue, immunity decline.
Lead, cadmium, chromium, mercury and other soluble heavy metals exceed the standard may be enterprises in order to achieve the "ultra-white" effect and add excessive cadmium-containing white inormeric pigments caused, and heavy metals exceed the standard easy to cause poisoning, it must not be explained, you can understand the tumultuous years of the war.