What Is Fire Resistant Paint?

Fire-resistant paint is to paint the surface of those flammable materials, which can improve the fire resistance of the material, slow down the speed of flame spread, or prevent combustion for a certain period of time. This type of paint is called fire-resistant paint, or flame-retardant coating.

Fire-resistant coating

Fire-resistant paint is to paint the surface of those flammable materials, which can improve the fire resistance of the material, slow down the speed of flame spread, or prevent combustion for a certain period of time. This type of paint is called fire-resistant paint, or flame-retardant coating.

Fire-resistant coatings are used on the surface of flammable substrates, which can reduce the flammability of the surface of the coated material and block the rapid spread of fire to improve the coated material.

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

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1. You can make a preliminary inspection of the quality of the product on the spot: cut 2 to 3 small samples on the already constructed base material, or take a small amount of samples and coat them on 2 to 3 150mm × 150mm plywood. Condition painting. When it is dry, check with the flame of an alcohol lamp. The flame height is about 40mm, and the flame application time is generally 20min. Check the coating foaming. Under normal circumstances, according to the specified amount (usually 500 g / m2) construction, the foam layer thickness of the primary fire retardant coating is more than 20mm, the foam layer thickness of the secondary fire retardant coating is more than 10mm, and the foam layer should be uniform and dense.

2. Qualified intumescent fire-resistant coatings will foam and swell in large quantities when burned by a strong fire such as a torch. The surface will gather and bulge, and there will be no burn-in in a few minutes. Counterfeit and inferior fire-resistant coatings will not foam and will A large amount of slag is scattered, and the wood substrate will soon burn and break.

3. Check whether the product has a qualified inspection report issued by the national fire quality inspection center, or you can check it online. Fire retardant coatings implement the national compulsory product certification system. Fire retardant coatings sold on the market should have national compulsory product certification certificates and type inspection qualification reports.

4. In actual use, in order to ensure the fire resistance and other performance properties of fire retardant coatings, a transparent overcoat is generally required. The amount of fire-resistant coating is generally 350-500 g / m2, and the amount of cover coating is generally 50 g / m2.

Avoid the misunderstanding of choosing the right fireproof coating: different space and different materials have different requirements for the performance of fireproof coatings, so when buying paints, you can ask an experienced store salesperson to use the right fireproof coatings in the right places. Play the best fire prevention effect.

Non-intumescent fire retardant coatings are mainly used for fire protection of board materials such as wood and fiberboard, and are used on wooden structure roof trusses, ceilings, doors and windows.

Intumescent fireproof coatings include non-toxic intumescent fireproof coatings, emulsion-type intumescent fireproof coatings, and solvent-type intumescent fireproof coatings.

Non-toxic intumescent fire retardant coatings can be used for fire retardant coatings or fire putties to protect cables, polyethylene pipes and insulation boards.

Emulsion-type intumescent fire-resistant coatings and solvent-type intumescent fire-resistant coatings can be used for fire protection of buildings, electric power, and cables.

New fire-resistant coatings include: transparent fire-resistant coatings, water-soluble intumescent fire-resistant coatings, phenol-based fire-resistant coatings, latex fire-resistant coatings, polyvinyl acetate emulsion-based fire-resistant coatings, room-temperature self-drying water-soluble intumescent fire-resistant coatings, polyolefin fire-resistant insulating coatings, and modifications High-chloride polyethylene fire-resistant coatings, chlorinated rubber expanded fire-resistant coatings, firewall coatings, foam-type fire-resistant coatings, wire and cable flame-retardant coatings, new fire-resistant coatings, casting fire-resistant coatings, etc.

Test methods related to fire retardant coatings

GB facing fire retardant coating (applicable to intumescent facing coating) There are three common methods of slab burning method, tunnel burning method, and small chamber burning method.

Building fire protection is an important area of fire science and technology, and fire coatings are an important part of fire building materials. Fire-resistant coatings refer to a class of coatings that are applied to the surface of an object to prevent fires, prevent the spread of fire or isolate the source of fire, extend the ignition time of the substrate or increase the thermal insulation properties to delay the time of structural damage. According to different purposes and uses, it can be divided into: fire-resistant coatings for facings, fire-resistant coatings for cables, fire-resistant coatings for steel structures, and fire-resistant coatings for prestressed concrete floors. The development of China's fire-resistant coatings is 15 to 20 years later than that of developed foreign industrial countries. Although it started late, it has developed rapidly. In particular, steel structure fire-resistant coatings have approached or reached the international advanced level in terms of variety types, technical performance, application effects, and degree of standardization. In recent years, its demand has increased exponentially, which is inseparable from the rapid development of steel structures.

After decades of development, the production technology of fire-resistant coatings in China has reached European and American standards. Therefore, consumers need to prevent wearing "colored glasses" when purchasing fire-resistant coatings, and use the quality of the product as their choice. High quality and cheap fire retardant coating.
In addition, the increase in the brand of fire-resistant coatings has brought a lot of distress to consumers. Consumers can query the brand's user experience or the brand's website through the Internet, so that they can purchase more suitable fire-resistant coating products more wisely.
In the professional consumer group, fire-resistant coatings are no longer a concept, but a combination of various factors such as evaluations from various parties, a package of technical tests, corporate brand strength, and product functions. Shop for your favorite fire protection coating brand.

Due to the rapid development of the Internet, online shopping is not a new thing. Fire safety products must be paid special attention when buying online. First of all, manufacturers and their products need to be understood, and their authenticity must be verified. In addition to checking the store's business license and other information, you should check whether it passed the fire inspection on the fire product information website. You can find out if the product is searched by its company name, certificate number, inspection report number, or product model. It is produced by a regular manufacturer. In addition, the "Fire Products Identity Card" system has been implemented since 2008. At the time of purchase, the red S -shaped identification mark on the product label can be used to identify the authenticity, and before the purchase, the seller is required to view the product type approval certificate and inspection report that match the product.

Fire-resistant paint is a passive fire-resistant material that is painted on the surface of the protected object. Any protected object has a limit value that can withstand the fire test. No matter what kind of structure, the building will collapse when it is exposed to fire for a long time. The function of fireproof coating is to isolate the surface of the protected object, delay the time of building collapse, and gain precious time for rescue and fire fighting. To be precise, the fireproof coating also has its fire resistance limit. After the fire resistance limit is exceeded, the surface of the protected object will still catch fire.