Indoor non-expansion steel structure fireproof paint

introduce

1, indoor non-expansion steel structureFire retardant paintIt is composed of inorganic insulation material as the main component, with no corrosion of steel, no chemical reaction with any anti-corrosion primer, no irritating odor, light coating weight (structural load weight is relatively light), large unit coating area, no smoke in case of fire, no release of harmful gases. Therefore, it is suitable for fireproof coating and fire protection of steel structure bearing members in various new, expansion and reconstruction of industrial and civil construction projects, and is an ideal fire insulation coating.

2, recommended use: outdoor, indoor steel structure, concrete structure fire prevention, such as stadiums (pavilions), airports, stations, TV towers and other high-rise buildings, also applicable to fire columns.

3, the product has the characteristics of high strength, water resistance, acid and alkali resistance, anti-freeze, not easy to age, can be applied for a long time in outdoor harsh weather conditions; In case of fire, it can effectively prevent fire and heat insulation; And shouldFire retardant paintIt also has thermal insulation, heat preservation, sound absorption and other properties.

Technical standard

Technical specifications according to GB 14907-2018 standard.

Technical parameter

The state in the container	After stirring, it is in a uniform thick fluid state without caking
Drying time (surface dry) /h	≤24h
Initial drying resistance to cracking	1 ~ 3 cracks are allowed, and their width should be ≤0.5mm
Bond strength/MPa	0.04 or higher
Compressive strength/MPa	0.5 or higher
Dry density/(kg/m³)	650 or less
Thermal insulation efficiency deviation	Plus or minus 15%
PH value	7 or higher
Resistance to freeze-thaw cycles/times	After 15 tests, the coating did not crack, fall off, bubble phenomenon, and the heat insulation efficiency attenuation ≤35%
Acid resistance	After 360h test, the coating should have no lamination, falling off, cracking phenomenon, and the heat insulation efficiency attenuation ≤35%
Alkali resistance	After 360h test, the coating should have no lamination, falling off, cracking phenomenon, and the heat insulation efficiency attenuation ≤35%
Salt spray resistance/time	After 30 tests, the coating should have no foaming, obvious deterioration, softening phenomenon, and the heat insulation efficiency attenuation ≤35%

Characteristic advantage

1, non-expansion steel structureFire retardant paintFree of asbestos and organic solvents, no harm to human body.

2, non-expansion steel structureFire retardant paintDirect spraying and coating construction, drying and curing fast.

3, light coating, strong bond, high strength, excellent anti-corrosion performance.

4, excellent fire resistance, weather resistance, outdoor use must do fire paint.

Construction technology

1.Fire retardant paintBefore painting, rust removal and anti-rust primer coating on the surface of steel members should meet the design requirements and current relevant regulations, and dust, oil and other debris on the surface of steel members should be thoroughly removed.

2.Fire retardant paintPainting 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.

3. Brush the steel structure interface agent once before spraying, and paint by spraying or smearing after the interface agent is dry. Before coating, mix and stir evenly according to the ratio of powder: emulsion = 1:1 to make it a thick fluid without caking.

4. The thin consistency should be determined according to the coating method, so as to facilitate construction, do not flow and bond firmly. The steel frame mesh should be added to the extra-wide large steel to prevent the paint from leaking or separating.

5. When painting by spraying, use the bump-type spray gun, the air pressure is 0.6 ~ 0.8MPa, and the diameter of the spray gun mouth should be 6 ~ 10mm. The spray gun is perpendicular to the surface of the component to be painted, and 40 ~ 60mm is appropriate.

6. The spraying construction is not too thick, and then the next construction is carried out after drying, and it is appropriate not to flow until the standard thickness is reached. The coating method is usedFire retardant paintThe coating method is basically the same as that of cementing.

Fire protection time, coating thickness and theoretical dosage:

Fire resistance time (min)

180

Coating thickness (mm)

32

Material consumption kg/m2

23 to 25

 

Matters needing attention

1, the paint is water-based environmental protection formula, environmental protection and pollution-free, but considering the human body stimulation and health considerations, the construction personnel still need to wear the necessary labor protection supplies, such as: gloves, masks, glasses, etc.

2, During construction, the configured paint must be used at one time to prevent drying and solidification.

Transportation, packaging, storage

1. The coating package is packed in 25kg polypropylene peritoneal woven bag.

2, storage rain, moisture, can not be stacked in the open.

3, the paint in 5℃-35℃ indoor cool, dry, ventilated environment storage period is not less than 6 months.

4, this product is non-dangerous goods, according to non-dangerous goods transport, can be checked according to general goods, but must be rain, moisture.