Coating standard: GB 12441-90 general specification for facing fire retardant coating

Core tips: 1 Subject content and scope of application This standard specifies the technical requirements, test methods, acceptance rules, marks, etc of the decorative fire retardant coating used for the combustible base materials of buildings and projects This standard is applicable to all kinds of intumescent fire retardant coatings Non intumescent fire retardant coating can refer to this standard 2 Reference standards GB 1720 determination of film adhesion GB 1727 general preparation of paint film GB 1728 test method for drying time of paint film and putty film GB 1731 determination of film flexibility GB Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Coating home news: 1 Subject content and scope of application this standard specifies the technical requirements, test methods, acceptance rules, signs, etc of the decorative fire retardant coating used in buildings and projects This standard is applicable to all kinds of intumescent fire retardant coatings Non intumescent fire retardant coating can refer to this standard 2 Reference standard GB 1720 test method for film adhesion GB 1727 test method for general preparation of film GB 1728 test method for drying time of film and putty GB 1731 test method for flexibility of film GB 1732 test method for impact resistance of film GB 1733 test method for water resistance of film GB 1740 test method for damp heat resistance of film GB 3181 standard sample for film color GB 3186 sampling of coating products GB 3186 6753.1 determination of fineness of coating grinding GB 6753.3 test method for storage stability of coating GB 7691 safety code for coating work labor safety and health management GB 9750 packaging mark of coating products ZB g51 001 test method for fire performance of fire retardant coating large plate combustion method ZB g51 002 test method for fire performance of fire retardant coating tunnel combustion method ZB g51 003 fire retardant coating test method chamber combustion method ZB g51004 fire retardant coating fire performance grading standard 3 The term decorative fire retardant coating is applied to the surface of combustible base materials (such as wood, plastic, cardboard, fiberboard, etc.) to form a general term of a class of fire retardant coating with fire retardant protection and decorative role coating film 4 Technical requirements 4.1 General requirements 4.1.1 the coating and coating performance specified in this standard refer to the decorative intumescent fire retardant coating used for indoor wood base materials 4.1.2 the raw materials used for the manufacture of fireproof coating shall be inspected in advance Benzene solvents should not be used The solvent system shall comply with the relevant provisions of GB 7691 4.1.3 the color of the fire retardant coating can be determined according to the provisions of GB 3181 or by agreement between the manufacturer and the user 4.1.4 within the specified storage period, the fire retardant coating shall be uniform liquid or thick and slurry fluid, without hardening, crusting or obvious color and filler to determine sediment Slight delamination is allowed, but it can become a uniform and suspended system after stirring 4.1.5 the fire retardant coating can be easily applied by any one or more methods of brushing, spraying, roller coating or scraping It can be dried under normal natural environment conditions, and there is no obvious concave convex or streak on the surface after nationalization and film formation, no peeling, pinhole, bubble, craze, spot or color separation, and it can form a flat finish 4.1.6 the fire retardant coating shall have no pungent smell after construction 4.2 physical and chemical performance index No item index requirements 1 23 4 5 6 7 8 state fineness in container, μ m ≤ drying time, H ≤ surface dry dry adhesion, grade ≥ flexibility, Mm ≤ impact resistance, kg · cm ≥ water resistance, 24h humidity and heat resistance, 48h no caking, in a uniform state after mixing 100 4 24 3 3 20 no blistering, no powder dropping, allowing slight loss of light and color without cracking, no powder dropping, allowing slight loss of light and color changing coating home is focused on coating, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, Paint coating, coating process, decoration knowledge and decoration effect drawing of fire retardant coating,