Fire retardant coating for thin steel structure

introduce

Brush on the surface of the steel structure, in case of fire, the coating expands and foams to form a carbonized refractory heat insulation protective layer, which cuts off oxygen, delays the speed of the steel structure to heat up, and avoids the rapid heating of the steel structure, thus improving the fire resistance time of the steel structure. The product can meet the requirements of fire protection with fire resistance limit of 0.5h ~ 2.5h, and is suitable for the columns, beams, roof bearing members and evacuation stairs that support single-storey fire resistance in building design. Steel structural members supporting single-storey and multi-storey columns, beams, roof load-bearing members and evacuation stairs in the second to fourth fire resistance grade. Comply with GB 14907-2002 national standard technical indicators.

peculiarity

Technical parameter

Fire resistance 2mm coating ≥60min 3mm 100min

Construction technology

Before coating, the steel member surface rust and anti-rust primer coating should meet the design requirements and the current relevant national regulations, should be thoroughly removed from the surface of the steel member dust, oil and other debris. Fire retardant coating should be carried out before interior decoration and under the condition that it is not damaged by subsequent works. During construction, the walls, doors and Windows, mechanical equipment and other components that do not need fire protection should be shielded. Before painting, the paint should be fully stirred evenly, such as the paint is too thick, can be appropriate to add water, dilute to suitable painting, do not flow. This product is suitable for painting by spraying method. Spray evenly with a bucket gun with a muzzle diameter of 6 ~ 8mm under an air pressure of 0.4 ~ 0.6MPa. The coating thickness of the first time is appropriate to cover the base surface, generally not more than 1mm; The next coating can be carried out only after the previous coating is dried; From the second time, the coating thickness of each time can be appropriately increased, but it is appropriate not to flow.

Matters needing attention

1.2kg/㎡/mm.

Packing and storage