Coating standard: GB 9757-88 solvent based exterior wall coating

Core tips: 1 Subject content and scope of application This standard specifies the general technical conditions for solvent based exterior wall coatings This standard is applicable to Pu type exterior wall coating based on synthetic resin 2 Reference standards GB 1724 determination of fineness of coatings GB 1726 determination of coating covering power GB 1728 test method for drying time of paint film and putty film GB 1729 determination of film color and appearance GB 1733 test method for water resistance of paint film GB 1865 determination of film aging (artificial acceleration) GB Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of coatings news: 1 Subject content and scope of application this standard specifies the general technical conditions of solvent based exterior wall coatings This standard is applicable to Pu type exterior wall coating based on synthetic resin 2 Reference standard GB 1724 test method for fineness of paint GB 1726 test method for covering power of paint GB 1728 test method for drying time of paint film and putty film GB 1729 test method for color and appearance of paint film GB 1733 test method for water resistance of paint film GB 1865 test method for aging of paint film (artificial acceleration) GB 3186 sampling of paint products GB 6751 test method for black volatile matter and non-volatile matter of paint and varnish GB 7653.3 Test method for storage stability of paints GB 9152 preparation of test plates for coatings of building paints GB 9265 determination of alkali resistance of coatings of building paints GB 9266 determination of washability of coatings of building paints GB 9268 determination of freeze-thaw resistance of latex paints GB 9271 test plates for black standard of paints and varnishes GB 9780 determination of stain resistance of coatings of building paints 3 Technical requirements products shall meet the following requirements Technical indicators: the state solid content of the project indicators in the container,%, shall not be less than uniform mixing, no caking fineness, μ m shall not be greater than 45 workable 45 covering force, g / M 2 shall not be greater than no construction difficulty, white and light color 140 color and appearance shall conform to the standard template, within the range of color difference, the surface shall be flat and dry for a period of time, H shall not be greater than surface dry 2, solid dry 24 water resistance, 144H No blistering, no powder dropping, no light loss and discoloration alkali resistance, no blistering, no powder dropping, no light loss and discoloration alkali resistance for 24 hours, no less than 200 times of stain resistance, 5 times of reduction rate of reflection coefficient,%, no more than 15 times of artificial aging resistance, no blistering, no peeling, no crack pulverization for 250h, no more than 2 times of discoloration, no more than 2 times of freeze-thaw cycle resistance, 10 times of discoloration The home of non foaming, non peeling and non powdered coatings focuses on coatings, diatom mud, paint coating, coating process, news and coating of fire retardant coating, diatom mud, paint coating, coating process, decoration knowledge and decoration effect map of fire retardant coating,