The Ball pot Fire retardant coating Fire dike Thermal insulation coating manufactor
Spherical tank fire protection coating The thermal insulation coating of fire dike is a thermal insulation fireproof coating with low density, good adhesion and easy construction. In case of fire, due to its good heat insulation, it can protect the concrete members within 3h to win the fire extinguishing time.
The physical and chemical properties of the fireproof building material quality supervision and inspection center meet the technical requirements of GB28375-2012 Fire Retardant Coatings for Concrete Structures. When the coating thickness is 20mm, the fire resistance performance is 2h.
Fire retardant coating for fire dike, asbestos free, good comprehensive performance, low sound absorption and heat island rate Waterborne paint 。
Main purpose:
This coating can be applied to the buildings of concrete components and the concrete surface of fire dike in petrochemical storage and irrigation area by extrusion pump or spray gun, which can improve the fire resistance limit by more than 3.0h.
Construction method
4.1 The concrete surface can be constructed only after it is leveled, water stopped, oil stain and floating dust removed, and the concrete structure surface is kept clean.
4.2 At the construction site, the glue, powder and water shall be fully mixed with an electric mixer in the proportion of 1:4:4. It can be used after there is no caking, about 15-20 minutes. During construction mixing, the method of less mixing times shall be adopted.
4.3 The thickness of the coating is 19mm, the fire resistance time is not less than 2h, the amount of the coating after mixing is about 1.0kg/m2/mm, and the coating is sprayed 3-4 times, one time cannot exceed 3mm. It must be completely dried before spraying the second time, and the second time can be sprayed 6-7mm. After drying, the next time can be sprayed until the corresponding thickness is reached.
4.4 The period for the fireproof coating to fully reach the strength is 28 days. The curing conditions are the same as those of ordinary concrete. If the coating is damaged, it should be repaired in time.
4.5 The evenly mixed coating shall be used within 4 hours, otherwise it will be cured and lose the bond strength and cannot be used.
4.6 The construction shall be carried out in a well ventilated room, and protection preparations shall be made in time in case of rainy weather during outdoor construction.
4.7 Under extremely dry and hot conditions, necessary curing conditions should be created to prevent the coating from losing water too quickly.
Technical requirements for fireproof coating of fire dike
1. The state in the container is stirred to form a uniform thick fluid without agglomeration
2. Drying time (surface drying)/h ≤ 24
3. Bonding strength/MPa ≥ 0.15<before freezing and thawing)/≥ 0.15 (after freezing and thawing)
4. Compressive strength/MPa ≥ 1.5O (before freezing and thawing)/≥ 1.50<(after freezing and thawing)
5. Dry density/(kg/m3) ≤ 700
6. Water resistance/h ≥ 720. After the test, the coating will not crack, peel off, and allow slight swelling and discoloration
7. Acid resistance/h ≥ 360, after the test, the coating will not crack, peel off, and allow slight swelling and discoloration
8. Alkali resistance/h ≥ 360, after the test, the coating will not crack, peel off, and allow slight swelling and discoloration
9. Heat exposure/h ≥ 720, after the test, the coating will not crack, delaminate and fall off, and slight swelling and discoloration are allowed
10. Damp heat resistance/h ≥ 720, after the test, the coating will not crack, peel off, and allow slight swelling and discoloration
11. Freeze thaw resistance cycle test/time ≥ 15, after the test, the coating will not crack, peel off, and allow slight swelling and discoloration
12. Salt spray corrosion resistance/time ≥ 30. After the test, the coating will not crack, peel off, and allow slight swelling and discoloration
13. The smoke toxicity of materials shall not be lower than the level ZA1 specified in GB/T 20285-2006
14. Fire resistance/h ≥ 2.00 (standard temperature rise)/≥ 2.00 (HC temperature rise)/≥ 2.00 (petrochemical temperature rise)
