What is the description of the construction of the indoor thin fire retardant coating

Construction technology of thin steel structure fireproof coating:

After cleaning the rust spots on the specimen and steel beams, immediately brush an anti-rust paint to do it, that is, the hand picks it without moving (about 48 hours) for later use.

Open the lid of the paint bucket and stir well with the electric mixer in your hand.

The thickness of each pass is appropriate, and the next construction can be carried out without sticking to the finger touch until the thickness required by the fire protection design of the project is reached.

Construction temperature: 0 to 5 to 35 is appropriate, relative humidity 85%.

Construction technology of thin fireproof coating for steel structure.

Before the fireproof coating is painted, the surface rust removal and anti-rust primer coating of the steel components should meet the design requirements and the current relevant specifications, and the dust, oil and other debris on the surface of the steel components should be completely removed. The application of fire-retardant paint should be carried out before the interior decoration and in the condition that it is not damaged by subsequent works. During construction, walls, doors and windows, machinery and equipment and other components that do not need fire protection should be covered and protected.

Before coating, the paint should be fully stirred evenly, if the paint is too thick, an appropriate amount of water can be added, diluted to the point that it is suitable for coating and does not flow. This product is suitable for coating by spraying method. Spray evenly with a bucket gun with a diameter of 6 8 mm under pressure at air pressure.

The thickness of the first spraying should be able to cover the surface of the base layer, generally not more than 1mm; The next coating can only be carried out after the previous coating is dry; From the second pass, the thickness of each brush can be increased appropriately, but it is advisable not to flow.

Precautions for fire retardant coatings for steel structures.

During the construction process and before the coating is dried and cured, the ambient temperature should be kept at 5 45, the relative humidity should not be greater than 90%, and the air should be circulated. When there is condensation on the surface of the component, it is not suitable for construction. During the construction process, it is necessary to pay attention to measuring the thickness of the coating at all times according to the fire resistance limit.

During the spraying operation, it is necessary to pay attention to the consistency of the spraying direction to avoid the inconsistent direction of the concave and convex texture, resulting in the color difference of light sensitivity. This product is a water-based fire retardant coating, so the coating should be kept indoors or in a rain shelter during and after construction to avoid rain.

Ultra-thin fire-retardant coatings refer to: fire-retardant coatings with a coating thickness of less than 3 mm, and there are two common ultra-thin fire-retardant coatings on the market, one is oil-based (also called fireproof paint); The other is water-based, which belongs to the intumescent steel structure fireproof coating.

The principle of fire protection is much the same: the coating expands when exposed to fire to form an insulating layer, and at the same time releases a flame-retardant gas to reduce the degree of combustion.

The thickness of the steel structure fireproof coating is selected according to the length of the flame retardant time, and the thickness of the ultra-thin fire retardant coating is generally less than or equal to 2mm, and the flame retardant time is within 2 hours, which is suitable for the fire protection requirements of all structures.

Hello answer, happy to answer your questions! Steel structure thick fireproof coating NH (BT-03) spraying should be divided into many times for brushing, steel structure thick fireproof coating is generally between 8-45mm, steel structure thick fireproof coating layer spraying mainly to basically cover the steel surface, after each layer of steel structure thick fireproof coating spraying thickness of 5 l0mm, pay attention to the previous spray layer is basically dry or solidified and then sprayed, normally, spray once a day.

The thickness of the fireproof coating spraying protection method, the number of spraying coatings and the thickness of the coating should be determined according to the fireproof design requirements. The fire resistance time limit is 1 3h, and it generally needs to be sprayed 2 5 times to meet the due requirements.

The criteria should be: hourly fire resistance limit thickness; Hour fire resistance limit thickness; Hour fire resistance limit thickness; Hour fire resistance limit thickness;

Ultra-thin steel structure fireproof coating: steel structure fireproof coating with coating thickness of less than 3mm (inclusive), good decorative effect, can expand and foam at high temperature, and the fire resistance limit is generally within 2 hours;

a) Ultra-thin steel structure fireproof coating: coating thickness less than or equal to 3mm; b) Thin steel structure fire retardant coating: coating thickness greater than 3mm and less than or equal to 7mm; c) Thick steel structure fire retardant coatings:

The coating thickness is greater than 7mm and less than or equal to 45mm

Ultra-thin steel structure fireproof coating refers to the steel structure fireproof coating with a coating thickness of no more than 3mm, this kind of fireproof coating expands and foams when fired, forming a dense fireproof insulation layer, which is a new variety developed in recent years. It can be sprayed, brushed or roller coated, and is generally used in building steel structures that require a fire resistance limit of less than 2h. The ultra-thin expanded steel structure fireproof coating has finer viscosity, thinner coating, convenient construction and better decoration.

The thickness is in millimeters, and the fire rating is qualified when the hour is above.

According to the provisions of G B14907-2002 "Fire Retardant Coatings for Steel Structures".

1. Fire retardant coatings with a coating thickness of less than 3mm are called ultra-thin fire retardant coatings.

2.Fire retardant coatings with a coating thickness of less than 4-7mm are called thin fire retardant coatings.

3.Fire retardant coatings with a coating thickness of less than 8-45mm are called thick fire retardant coatings.

Therefore, the fire resistance limit of fire retardant coatings of different thicknesses and manufacturers is also different. The specific is determined according to the test report and the manufacturer's technical documents. Details: 130411 Lee 91240

Many people will consider fireproof coatings when decorating for the fire safety of their homes, and today I will introduce to you the misunderstandings of using fireproof coatings and the principle of ultra-thin or thin fireproof coatings.

First, the use of fireproof coating misunderstandings.

Avoid misunderstandings and choose the right fireproof coating: different spaces and different materials have different performance requirements for fireproof coatings, so when purchasing coatings, you can ask experienced store salesmen to imitate the old salesman, and use suitable fireproof coatings in suitable places to use suitable filial piety in suitable places, so as to play the best fireproof effect.

1. Use wood structure fireproof coating on steel structure.

Since the wood structure fire retardant coating and steel structure fire retardant coating are not identified by the naked eye, consumers must know the detailed attributes of fire retardant coatings when purchasing. If the steel structure uses the fireproof coating of the wood structure, its adhesion is greatly reduced, and it is easy to fall off, and the fire safety cannot be guaranteed.

2. Solvent-based and water-based fire-retardant coatings are not distinguished.

There are two types of fire retardant coatings for steel structures, solvent-based fire retardant coatings and water-based fire retardant coatings. From the perspective of adhesion, solvent-based is greater than water-based, therefore, solvent-based fire-retardant coatings should be used for outdoor steel structures, and solvent-based or water-based fire-retardant coatings can be used for indoor steel structures.

The fireproof coatings produced by some domestic manufacturers will decompose toxic gases when exposed to fire. If this coating is used in refractory electrical products, toxic gases will be released in the event of a fire. For example, the use of G60 perchloroethylene fire retardant coating, which has been eliminated, will decompose toxic chlorine gas when exposed to fire, so it cannot be used.

The quality of fire retardant coating construction also has an impact on the fire performance of the material, so it is necessary to pay attention to the coating quality of fire retardant coating. The coating method of different fire retardant coatings is slightly different, but the basic construction points are the same.

Second, the principle of ultra-thin or thin fire retardant coatings.

The principle of fire protection and heat insulation of ultra-thin or thin steel structure fire retardant coating coated on the steel structure is that the fire retardant coating layer expands and foams when exposed to fire to form foam, and the foam layer not only isolates oxygen, but also has good thermal insulation performance because of its loose texture, which can delay the speed of heat transfer to the protected substrate; According to the analysis of physical and chemical principles, the process of foaming the foam layer produced by the expansion of the coating shows an endothermic reaction because of the expansion of the volume, which also consumes the heat during combustion, which is conducive to reducing the temperature of the system.

I hope this article can help you understand fire retardant coatings. For more information and tips on home improvement, stay tuned. We are committed to improving everyone's happiness at home and escorting everyone's happy home life.

Thin-coated fire-retardant coatingMaterials include: Lanling, Zhongnan Coating, Tian'an Puning, Whale Sea Paint, Huifu.

1. Lanling: Jiangsu Lanling Chemical Group Co., Ltd. was established in 1992, a major domestic paint manufacturer and a well-known manufacturer of steel structure production, and its new environmentally friendly and energy-saving paint coatings are deeply loved by consumers. Among them, fire retardant coatings are key national torch plan projects.

2. Zhongnan Coatings: Shanghai Zhongnan Building Materials Co., Ltd. is a large-scale state-owned holding enterprise specializing in the production of architectural coatings and adhesives in China. Its decorative fireproof coatings are also widely used, which can not only insulate and flame retardant, but also have strong environmental protection, which is very suitable for families with the elderly and children, and better care for the safety and health of family members.

3. Tian'an Puning: Beijing Tian'an Puning Fire Material Factory was built in 2000, is a professional manufacturer of fire-retardant coatings, integrating research and development, production and sales and construction of various fire-retardant coatings. It can meet the fire protection of different substrates and different technical requirements in various construction projects.

4. Whale Sea Paint: Whale Sea Paint is a brand of Champion Technology Group Co., Ltd., ultra-thin steel structure fireproof coating, fast drying, good adhesion between layers, good hiding power, and superior fire performance. And when the steel structure encounters flames or high temperatures, the fireproof coating can generate a uniformly sealed foam insulation layer, which can isolate the damaging effect of the heat source on the substrate.

5. Huifu: Shanghai Huifu fireproof materials, which was first founded in 2002, produces decorative fireproof coatings, which have the effect of environmental protection heat insulation and flame retardant, and are more convenient in construction as water-based emulsions. It can be applied to a wide range, non-toxic, tasteless, non-polluting, and is an ideal fireproof decorative material.

The above content refers to the encyclopedia - Zhongnan Paint Gao Jin.

Encyclopedia - Whale Sea Paint.

Indoor thin-coated steel structure fire-retardant coatings, Oukang thin-coated steel structure fire-retardant coatings, decorative fire-retardant coatings, decorative fire-retardant coatings, ultra-thin fire-retardant coatings, decorative fire-retardant coatings, ** thick fire-retardant coatings, outer thickness fire-retardant coatings, thin-coated epoxy resin floors, thin steel structure fire-retardant coatings.

Indoor ultra-thin steel structure fireproof coating has the characteristics of ultra-thin coating, low dosage, long life, easy construction and high fire resistance; The coating thickness is less than 3mm (including 3mm), the decorative effect is good, it can expand and foam at high temperature, and the fire resistance limit is generally within 2h of the steel structure fireproof coating; This kind of fireproof coating coating is ultra-thin, which greatly reduces the amount of thicker and thinner steel structure fireproof coating, thereby reducing the total cost of the project, and makes the steel structure get effective fireproof protection, and the fireproof effect is very good.

The indoor thin steel structure fireproof coating coating is thin, light in weight, does not contain asbestos and organic solvents, is not harmful to the human body, and is non-corrosive; Strong adhesion, does not need steel mesh reinforcement, will not fall off naturally; Excellent seismic resistance, bending resistance, frost resistance, and blocking properties; Its decorative properties are better than thick fireproof coatings, inferior to ultra-thin steel structure fireproof coatings, and the general fire resistance limit is within 2h; The coating thickness is greater than 3mm and less than or equal to 7mm.

Summary. Good morning, dear. The thickness of a thin-coated fire retardant coating depends mainly on factors such as the material of construction to be protected and the required fire rating.

Good morning, dear. The thickness of a thin-coated fire retardant coating depends mainly on factors such as the material of construction to be protected and the required fire rating.

In general, the thickness of thin-coated fire retardant coatings is usually between millimeters and 2 millimeters.

1) Thicker fireproof coatings can usually improve the fire rating and protection time, but they will also increase the cost and construction difficulty.

2) Thinner fireproof coatings are less expensive and easier to apply, but their fireproof performance is not as good as thicker fireproof coatings.

The thickness of thin-coated fire retardant coating is between 3mm and 7mm.

Thin-coated fire-retardant coatings need to be judged according to the fire resistance limit. If the fire resistance limit is small, then the thickness of the thin-coated fire-retardant coating is within the maximum. If the fire resistance limit is small, then the thickness of the thin-coated fireproof coating is within the limit.

If the fire resistance limit is small, then the thickness of the thin-coated fireproof coating is within the limit.

The thin-coated fire-retardant coating is developed by Brother Mountain in the test of fire-retardant coating for many years. The coating expands and foams when exposed to fire, forming a dense and uniform fireproof insulation layer, and its fireproof insulation layer has a remarkable effect, and the steel structure fireproof system has excellent physical and chemical properties. The system consists of an anti-rust primer, a main ingredient and a topcoat.

The coating has a thin coating and light load on the protected steel structure, which is easy to apply and can reduce engineering costs. The use of this coating can greatly improve the fire resistance limit of steel structures and meet the requirements of relevant fire protection codes.

Precautions for the construction of thin-coated fire-retardant coatings

1. The thickness of each layer of paint is about 2mm, if sprayed, the thickness of the coating is about to, and the second layer should be sprayed after the previous layer is dry, and the thickness of the coating is subject to non-sagging.

2. During construction, the dust and oil stains on the surface should be removed, and the anti-rust paint should be sprayed on the surface 1 2 times. When spraying, you can spray with a barrel sprayer, but you must apply evenly when spraying, and there can be no uneven thickness and other problems.

3. When spraying, the thickness of each coating should be controlled, and the next coating can be sprayed only after the upper coating is dry, and so on, until the specified coating thickness is reached.

4. The thickness of the coating should be determined according to the requirements of the refractory grade. The requirements are different, and the thickness is also different. During construction, the surface should be leveled, so that the surface will be smoother.

5. During construction, the temperature of the collapse is quiet, and it is best to construct in an environment above 0 degrees. In addition, it is forbidden to carry out construction in rainy days or when the air humidity exceeds 85%, otherwise the quality of the project will be affected.

The above content reference: Encyclopedia - thin-coated outdoor steel structure fire retardant coating.