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    Home > Coatings News > Paints and Coatings Market > The classification and performance of water-based fire-resistant coatings are excellent

    The classification and performance of water-based fire-resistant coatings are excellent

    • Last Update: 2020-12-20
    • Source: Internet
    • Author: User
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    Fireproof coating is a special coating used for flammable substrate surface, which can reduce the flammability of the surface of the coated material and prevent the rapid spread of fire, so as to improve the fire resistance limit of the applied material. According to its field of use, fire protection coatings can be divided into: finish fire protection coatings, wood fire protection coatings, steel structure fire protection coatings, concrete structure fire protection coatings, tunnel fire protection coatings, cable fire protection coatings.
    water-based fireproof coatings are the result of the continuous expansion of fire-resistant coatings applications and the improvement of environmental
    regulations
    . Water-based coatings to green, health, environmental protection and other environmental protection has become the trend of industry development, water-based expansion of fire protection coatings with its excellent environmental protection, construction safety and fire performance, began to gradually by many owners and designers of all ages. At present, China has more than 100 water-based fire-resistant paint manufacturers, production reached tens of thousands of tons, as many as dozens of varieties.
    , China's water-based fire protection coatings mainly to finish fire protection coatings and thick slurry-type fire protection coatings. Water-based fire-resistant coatings can be divided into: synthetic polymer emulsion type, water-soluble resin type, inormeric adhesive type several categories.
    synthetic polymer emulsion type: film-forming substances for amphetamine emulsion, pure propylene emulsion, ethylene acetate emulsion, etc., add expansion flame retardant and other materials to make
    water-soluble resin type: water-soluble resin in the formaldehyde-melamine resin With light color, good light resistance, no mold, drying fast, low cost, good adhesion, water resistance, oil resistance, heat resistance, excellent electrical performance, itself can be used as a carbon source and gas source and many other advantages, therefore, by many manufacturers of all ages, has attracted the attention of researchers. My country has achieved very much in this regard.
    inorganic adhesive type: this kind of coating to silicate cement, magnesium hydroxide or other inorganic high temperature adhesive as the base material, add expansion pearl rock, mineral cotton and other bone and other chemical additives and water composition, mainly non-expansion type, its disadvantage is a large amount, thick coating, but can be used outdoors, therefore, also achieved a good application effect.
    in these types of water-based fire-resistant coatings, inororated adhesive type fire-resistant coatings are environmentally friendly varieties, but there are still some technical difficulties in coating physicophysication performance. Water-soluble amino resin, formaldehyde resin although has a very good comprehensive fire prevention effect, but because of its high formaldehyde content lack of good enough environmental performance, is not favored by the market.
    , it is understood that the current market application of more water-based fire-resistant coatings for synthetic polymer emulsion type. With the efforts of researchers, this fire protection coating can meet the standard of national-grade finished fire protection coating and has a high decorative properties. But it also has such as low temperature storage, application difficulties, emulsion itself contains different degrees of solvent or film-forming additives, in water resistance and adhesion and other aspects of the solvent-based coatings compared with the obvious deficiencies and other defects still need to be upgraded and improved technology.
    water-based ultra-thin expansion steel structure fire protection coating is a new research direction developed in recent years. Its main components are hydro-hydroelive emulsion substations, expansion systems and inorder fillers. Since it is an ultra-thin coating, its coating thickness is generally not more than 3mm, after fire, its thickness can expand to the original thickness of dozens of times, and the formation of dense honeycomb-like or spongy carbon layer, thus effectively isolating the source of fire, reduce the surface temperature of the steel structure, extend the fire resistance time of the steel structure.
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