(1) Uses: Non toxic intumescent fire retardant coatings, lotion intumescent fire retardant coatings and solvent intumescent fire retardant coatings. Non expanding fireproof coatings are mainly used for fire prevention of board materials such as wood and fiberboard, and are applied to the surfaces of wooden structures such as roof trusses, ceilings, doors and windows. Non toxic expansion fireproof coating can be used as fireproof coating or fireproof putty to protect cables, polyethylene pipes, and insulation boards.  

(2) The basic composition of thick coating tunnel fireproof coating is: binder (Portland cement, magnesium oxychloride or inorganic high-temperature binder, etc.), aggregate (expanded vermiculite, expanded perlite, aluminum silicate fiber, mineral wool, rock wool, etc.), chemical additives (modifier, hardener, waterproofing agent, etc.), and water. The base materials for tunnel fireproof coatings include Portland cement, magnesium oxychloride cement, and inorganic binders. Common inorganic binders include alkali metal silicates and phosphates.

The confusion between fire-resistant coatings for wooden and steel structures requires consumers to understand the detailed properties of Jiangxi Youlinsheng fire-resistant coatings when purchasing. Steel structure fireproof coatings and wooden structure fireproof coatings cannot be distinguished by the naked eye. If wooden structure fireproof coatings are used for steel structures, their adhesion is greatly reduced and they are prone to detachment, which cannot guarantee fire safety.

Water based and solvent based fireproof coatings are confused. Water based fireproof coatings and solvent based fireproof coatings are two commonly used fireproof coatings for steel structures. The fire-resistant coating manufacturer stated that solvent based fire-resistant coatings have greater adhesion compared to water-based coatings. Solvent based or water-based fire-resistant coatings can be used for indoor steel structures, while solvent based fire-resistant coatings should be used for outdoor steel structures.

The selection of coating type is incorrect. Different types of Jiangxi Youlinsheng fireproof coatings have different thicknesses and fire resistance limits when sprayed on steel structures. So the required time for the fire resistance limit of different parts of the steel structure is also different, and different types of steel structure fireproof coatings need to be sprayed to ensure that the fire resistance limit of the steel structure meets the standard requirements. There are three types of fireproof coatings: water-based fireproof coatings, oil-based fireproof coatings, and solvent based fireproof coatings. If three types of fireproof coatings are mixed and used, it will cause the applied coatings to be unable to bond or easily peel off, and the fireproof coatings will not meet the requirements and effectiveness of fire prevention. The spraying thickness during construction is relatively thin, and it should be noted that the performance indicators of the fire resistance limit of steel structures are closely related to the spraying thickness. The thickness of the spray coating varies, and the fire resistance limit also varies. If the thickness of the fireproof coating for steel structures is not sprayed according to the design requirements, the fire resistance limit of the steel cannot meet the requirements of fire protection.

Generally speaking, the thicker the coating, the longer the fire resistance time. The surface of the sprayed layer has protrusions. In order to ensure that the coating surface is uniform and flat, and the spraying thickness meets the requirements, the "Technical Specification for Application of Steel Structure Fireproof Coating" has clear requirements for the construction of thick coated steel structure fireproof coating: the sprayed coating should remove protrusions to ensure uniformity and flatness. However, some construction units disregard this requirement of the regulations, while others emphasize that the steel columns after spraying are decorated without fear of any bumps, and they compromise themselves, resulting in the steel structure fireproof coating not meeting the standard acceptance requirements. The unprofessional construction team must follow the relevant construction standards stipulated by the state. The construction methods vary depending on the situation and environment, and it is also important to choose between manual or machine spraying during construction. Attention should also be paid to the selection of spraying machines. The experience of fireproof coating manufacturers tells you to pay considerable attention to the intermediate process and later treatment of construction. Issues such as connection, reinforcement, and installation of steel components can cause the fireproof coating to expand and carbonize at the welding points, losing its fireproof function. If this situation occurs, it should be dealt with in a timely manner, cleaned up and repainted to ensure the overall fire safety standards of the steel structure. Jiangxi Youlinsheng Fireproof Coating