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Outdoor intumescent solvent based fire retardant coating

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Fire Retardant Coating

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+86-(0)371-55963911

E-mail:

huiquanshiye001@126.com

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Core performance features

Expansion and fire protection: In case of fire, the coating expands and foams rapidly to form a solid carbon layer to isolate heat.
Excellent weather resistance: specially designed for outdoor environment, with excellent water resistance, UV resistance, freeze-thaw resistance and resistance to chemical media (acid, alkali, salt).
High strength and durability: the coating has high bonding strength, anti-cracking, no need for additional reinforcement of wire mesh, stable performance, not easy to yellow 210.
Environmental protection and decoration: mostly water-based products, environmental protection without VOC emissions. The coating is smooth and can be adjusted in color, and can be used together with the decorative finish.

Core construction steps (in strict accordance with the certified coating structure, thin coating for several times)

The coating structure specified in the fire resistance test of the product is antirust primer → fire retardant coating → flame retardant fiber mesh cloth → fire retardant coating → finish. The total dry film thickness of the fire retardant coating is measured to be 3.1 mm. The solvent-based coating shall be applied twice to the design thickness, and the next process shall be carried out after each dry coating. Continuous construction is prohibited.

Specific steps:

1. Base treatment

Thoroughly remove the rust, oil stain and dust on the surface of steel components to ensure that the base is clean and dry. Qualified anti-rust primer shall be applied before construction.

2. Paint preparation

Before use, it must be fully stirred with electric tools.
If it is a two-component product, it should be strictly and accurately proportioned according to the instructions and used up within the specified time (such as 40 minutes).
If the paint is too thick, a small amount of special thinner or water can be added (the proportion of water added is usually less than 5%). Do not dilute too much.

3. Coating construction

Common method: It is recommended to use self-weight spray gun or airless spraying for large area construction, and the air pressure is generally > 0.4M. Small areas can be brushed or rolled.
The key principle is that it must be painted repeatedly. The thickness of each spraying shall not exceed 0.5mm 10. After the surface of the previous layer of coating is dry (subject to non-sticky), the next layer of construction shall be carried out until the total design thickness is reached.

4. Curing and finish

After construction, the coating shall be protected from rain until it is fully cured. In order to achieve the ideal weather resistance and decorative effect, the matching weather-resistant topcoat can be applied after the fireproof coating is completely dried.

Technical parameters

No.	Inspection and testing items	Standard clause number	Standard core requirements	Check the test results	Conclusion
2	Heat exposure resistance	GB14907-2018	The coating shall not be damaged after 720h, and the attenuation of heat insulation efficiency shall be ≤ 35%.	720h no damage, attenuation 10%	Conclusion
3	Resistance to moisture and heat	GB14907-2018	After 504 H, the coating is not damaged, and the attenuation of heat insulation efficiency is ≤ 35%.	No damage in 504 H, attenuation of 13%	Conclusion
4	Freeze-thaw cycle resistance	GB14907-2018	After 15 cycles, the coating shall not be damaged, and the attenuation of heat insulation efficiency shall be ≤ 35%.	No damage for 15 times, attenuation of 18%	Conclusion
5	Acid resistance	GB14907-2018	After 360h, the coating shall not be damaged, and the attenuation of heat insulation efficiency shall be ≤ 35%.	360h no damage, attenuation 15%	Conclusion
6	Alkali resistance	GB14907-2018	After 360h, the coating shall not be damaged, and the attenuation of heat insulation efficiency shall be ≤ 35%.	360h no damage, attenuation 17%	Conclusion
7	Salt spray corrosion resistance	GB14907-2018	After 30 tests, the coating shall not be damaged, and the attenuation of heat insulation efficiency shall be ≤ 35%.	No damage for 30 times, attenuation of 14%	Conclusion
8	Ultraviolet radiation resistance	GB14907-2018	After 60 times of irradiation, the coating is not damaged, and the attenuation of heat insulation efficiency is ≤ 35%.	No damage for 60 times, attenuation of 13%	Conclusion
9	Fire resistance	GB14907-2018	FT1.00 ≥ 1.00h, average temperature of test piece ≤ 538 ℃	The measured coating thickness is 3. 1 mm, the fire resistance time is 1. 00 H, the average temperature is 519. 85 ℃, and the maximum bending deformation is 28. 79 mm	Conclusion