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Detailed Introduction:
Introducing our GT-NSP-Fp-SB-3 indoor intumescent steel structure fire retardant paint – a cutting-edge water-based solution developed by our company. Exceeding the fire resistance and physical and chemical properties outlined in the GB14907-2018 standard for indoor intumescent steel structure fire retardant coatings, this product sets a new benchmark for safety and performance. Environmentally friendly and versatile, it offers a green alternative for fire protection of indoor steel structures.
Main Feature:
This product boasts early production, mature technology, a reasonable formula, stable fire resistance, and reliable fatigue resistance. Being water-based, it's free from harmful benzene substances, non-toxic, and environmentally friendly. Its direct spray application and fast drying speed ensure high construction efficiency, making it an optimal choice for safeguarding indoor steel structures.
Scope of Application:
It can be widely used in the fire protection of various indoor steel structure buildings such as apartments, office buildings, industrial plants, airports, and key projects; it can also be used in the fire protection of medium and large-span indoor steel structures in industry and civil use.
Base treatment and construction methods
1.Substrate treatment
1.1 Surface treatment of steel structures is the basic condition to ensure the durability of fire retardant coatings. According to different base materials, the surface treatment of steel structures should be as follows:
1.1.1 New ordinary steel structure surface
After the steel structure surface is sandblasted and derusted, a matching anti-rust and anti-corrosion coating is applied. It is recommended to use an epoxy zinc-rich primer + epoxy mica iron intermediate paint system.
1.1.2 Galvanized steel surface
In order to ensure good bonding performance with fire retardant coatings, epoxy coating transition paint must be used before construction.
1.1.3 Old steel structure or old primer surface
If the primer is not damaged and the surface is clean, check the compatibility of the fire retardant coating and the primer; if there is no primer or the primer is seriously damaged, the anti-corrosion coating must be removed and repainted before construction.
1.2 Before construction, thoroughly check whether the steel parts are painted with anti-rust paint, whether there is dust or oil stains, and whether there are cracks and improper welding on the steel beams and columns. Construction can begin only after the inspection shows that there are no problems.
1.3 Steel parts that have not been rust-proofed must be rust-proofed (this process is generally the responsibility of the user).
2. Apply fire retardant paint
2.1 When opening the packaging on site, you must use an electric stirrer to stir until the consistency is uniform. If the material is too thick, add a small amount of neutral water until it is suitable for brushing, but it should not exceed 5% of the paint volume.
2.2 It is advisable to use spraying to apply this coating. Each pass should be applied alternately horizontally and vertically, and it can be evenly applied.
2.3 Construction temperature and humidity requirements
When applying this paint, it should be used between 5~35℃ and relative humidity ≤80%. High humidity or low temperature will prolong drying time and cause poor film adhesion and reduction of other properties.
2.4 The coating needs to be sprayed in layers. The thickness of each spraying depends on the construction environment and temperature. Generally, the thickness of the first pass should be less than 2mm, and the thickness of each subsequent pass should be about 1-2mm until the design requirements are met.
2.5 Under normal temperature conditions, the construction interval should be more than 12 hours; if the temperature is too high or too low, the construction interval can be adjusted appropriately. The specific interval between each spraying is as long as the coating has a certain hardness when touched by hand.
2.6 During the use of this product, it is recommended to use alkali-free glass fiber cloth for wrapping. When the coating is constructed to about 2-2.5mm thick (dry film), wrap the alkali-free fiberglass mesh cloth with an overlap of 5-10cm. , after adding the mesh, use a spatula to compact the mesh in one direction, and pay attention to the compaction of the corners and joints. The next step of construction can only be carried out after comprehensive compaction and ensuring that there are no hollow parts.
2.7 When spraying, the spray gun should be perpendicular to the steel part to be sprayed, the distance is preferably 0.2~0.5 meters, the air pressure should be maintained at 0.6-0.8MPa, and the diameter of the spray gun mouth should be no less than 4mm.
2.8 When spraying, ensure that the coating is completely closed.
2.9 Local repairs and small-area construction can be done by hand.
2.10 High humidity and low gas flow or low temperature of the steel may cause condensation on the steel, resulting in poor adhesion of the paint, or even cracking, rolling, and peeling.
Precautions
1. The building should be capped during construction, and rain, soaking, and exposure to the sun are strictly prohibited during construction and use of the coating. If it is used in a semi-enclosed state for a long time, a high-performance topcoat is required.
2. Stir thoroughly before spraying. If thickening is found during use, add a small amount of neutral water and stir evenly before continuing to use.
3. In order to improve the fire-resistant stability of the fire-resistant coating in key parts of the steel structure during fire, it is recommended to wrap high-strength fiberglass cloth during the construction process.
4. In steel structures, the gaps between the roof plate and the steel beam and the gaps between the grid nodes must be sealed with paint.
5. The temperature of this coating during transportation shall not be lower than 0℃, and the storage temperature shall be higher than 5℃.
6. It is strictly prohibited to add other ingredients to this paint, and it is not allowed to be mixed with other paints.
7. Areas that do not need to be sprayed should be covered, and the coating after spraying should be protected from rainwater and exposure to the sun.
8. Clean the tools in time after spraying.
9. Pay attention to safety and take safety precautions.
Detailed Introduction:
Introducing our GT-NSP-Fp-SB-3 indoor intumescent steel structure fire retardant paint – a cutting-edge water-based solution developed by our company. Exceeding the fire resistance and physical and chemical properties outlined in the GB14907-2018 standard for indoor intumescent steel structure fire retardant coatings, this product sets a new benchmark for safety and performance. Environmentally friendly and versatile, it offers a green alternative for fire protection of indoor steel structures.
Main Feature:
This product boasts early production, mature technology, a reasonable formula, stable fire resistance, and reliable fatigue resistance. Being water-based, it's free from harmful benzene substances, non-toxic, and environmentally friendly. Its direct spray application and fast drying speed ensure high construction efficiency, making it an optimal choice for safeguarding indoor steel structures.
Scope of Application:
It can be widely used in the fire protection of various indoor steel structure buildings such as apartments, office buildings, industrial plants, airports, and key projects; it can also be used in the fire protection of medium and large-span indoor steel structures in industry and civil use.
Base treatment and construction methods
1.Substrate treatment
1.1 Surface treatment of steel structures is the basic condition to ensure the durability of fire retardant coatings. According to different base materials, the surface treatment of steel structures should be as follows:
1.1.1 New ordinary steel structure surface
After the steel structure surface is sandblasted and derusted, a matching anti-rust and anti-corrosion coating is applied. It is recommended to use an epoxy zinc-rich primer + epoxy mica iron intermediate paint system.
1.1.2 Galvanized steel surface
In order to ensure good bonding performance with fire retardant coatings, epoxy coating transition paint must be used before construction.
1.1.3 Old steel structure or old primer surface
If the primer is not damaged and the surface is clean, check the compatibility of the fire retardant coating and the primer; if there is no primer or the primer is seriously damaged, the anti-corrosion coating must be removed and repainted before construction.
1.2 Before construction, thoroughly check whether the steel parts are painted with anti-rust paint, whether there is dust or oil stains, and whether there are cracks and improper welding on the steel beams and columns. Construction can begin only after the inspection shows that there are no problems.
1.3 Steel parts that have not been rust-proofed must be rust-proofed (this process is generally the responsibility of the user).
2. Apply fire retardant paint
2.1 When opening the packaging on site, you must use an electric stirrer to stir until the consistency is uniform. If the material is too thick, add a small amount of neutral water until it is suitable for brushing, but it should not exceed 5% of the paint volume.
2.2 It is advisable to use spraying to apply this coating. Each pass should be applied alternately horizontally and vertically, and it can be evenly applied.
2.3 Construction temperature and humidity requirements
When applying this paint, it should be used between 5~35℃ and relative humidity ≤80%. High humidity or low temperature will prolong drying time and cause poor film adhesion and reduction of other properties.
2.4 The coating needs to be sprayed in layers. The thickness of each spraying depends on the construction environment and temperature. Generally, the thickness of the first pass should be less than 2mm, and the thickness of each subsequent pass should be about 1-2mm until the design requirements are met.
2.5 Under normal temperature conditions, the construction interval should be more than 12 hours; if the temperature is too high or too low, the construction interval can be adjusted appropriately. The specific interval between each spraying is as long as the coating has a certain hardness when touched by hand.
2.6 During the use of this product, it is recommended to use alkali-free glass fiber cloth for wrapping. When the coating is constructed to about 2-2.5mm thick (dry film), wrap the alkali-free fiberglass mesh cloth with an overlap of 5-10cm. , after adding the mesh, use a spatula to compact the mesh in one direction, and pay attention to the compaction of the corners and joints. The next step of construction can only be carried out after comprehensive compaction and ensuring that there are no hollow parts.
2.7 When spraying, the spray gun should be perpendicular to the steel part to be sprayed, the distance is preferably 0.2~0.5 meters, the air pressure should be maintained at 0.6-0.8MPa, and the diameter of the spray gun mouth should be no less than 4mm.
2.8 When spraying, ensure that the coating is completely closed.
2.9 Local repairs and small-area construction can be done by hand.
2.10 High humidity and low gas flow or low temperature of the steel may cause condensation on the steel, resulting in poor adhesion of the paint, or even cracking, rolling, and peeling.
Precautions
1. The building should be capped during construction, and rain, soaking, and exposure to the sun are strictly prohibited during construction and use of the coating. If it is used in a semi-enclosed state for a long time, a high-performance topcoat is required.
2. Stir thoroughly before spraying. If thickening is found during use, add a small amount of neutral water and stir evenly before continuing to use.
3. In order to improve the fire-resistant stability of the fire-resistant coating in key parts of the steel structure during fire, it is recommended to wrap high-strength fiberglass cloth during the construction process.
4. In steel structures, the gaps between the roof plate and the steel beam and the gaps between the grid nodes must be sealed with paint.
5. The temperature of this coating during transportation shall not be lower than 0℃, and the storage temperature shall be higher than 5℃.
6. It is strictly prohibited to add other ingredients to this paint, and it is not allowed to be mixed with other paints.
7. Areas that do not need to be sprayed should be covered, and the coating after spraying should be protected from rainwater and exposure to the sun.
8. Clean the tools in time after spraying.
9. Pay attention to safety and take safety precautions.
