steel structure Fire retardant coating 4-hour manufacturer's thermal insulation and fire protection coating offer
The quotation of 4-hour thermal insulation and fireproof coating for steel structure fireproof coating is made. The 4-hour thermal insulation coating for steel structure is mainly composed of inorganic thermal insulation materials, which will not expand in case of fire and has good thermal insulation performance. Non expansive fire retardant coating The inherent good thermal insulation of the coating and the heat absorption generated by the ablation reaction such as evaporation and decomposition of some components under high temperature are used to block and consume the transfer of fire heat to the substrate, thus delaying the time when the steel members reach the critical temperature. Non expansive fireproof coating , coating thickness is generally 7~50 mm, fire resistance up to 0 .5~4.0 h. Non expansive fire retardant coating Generally, it is incombustible, aging resistant, and has reliable durability, which is suitable for sexual buildings.
Standard requirements.
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S/N
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project
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Technical indicators
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Measured results
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one
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stay container Status in
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No caking, stirred evenly, thick fluid
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Uniform thick fluid, no caking
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two
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Drying time (surface drying), h
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≤24
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sixteen
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three
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Initial drying crack resistance
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Generally, there should be no cracks, 1-3 cracks are allowed, and the width should be ≤ 1mm.
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No crack
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four
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Bond strength, Mpa
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≥0.04
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zero point two
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five
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Compressive strength, Mpa
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≥0.3
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zero point six
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six
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Dry density, (kg/m3)
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≤500
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four hundred and sixty-one
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seven
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Water resistance, h
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The coating shall be free of delamination, foaming and falling off for ≥ 24h.
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qualified
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eight
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Cold and hot cycle resistance (times)
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≥ 15 times of coating shall be free of cracking, peeling and blistering.
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qualified
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nine
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Fire resistance
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Coating thickness, mm
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forty-three
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Fire resistance, h
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≥2
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four
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Construction method:
Construction equipment:
Sanding blender , squeeze propeller pump , air compressor, coating, cleaning, transportation tools, etc.
Paint mixing:
A、 Manual application: water: paint=7:10;
B、 Mechanical spraying: batching according to the ratio of water: paint=8:10, and mixing evenly. The prepared coating shall be used up within 4h. Because of the implementation
Water can be added and allocated according to different industrial machinery and equipment, secondary lining water absorption and weather conditions.
Construction: the construction environment temperature is 5 ℃ - 20 ℃. The thickness of better spraying should be about 4mm, and the thickness of later spraying and plastering can be about 5-8mm. The interval of each construction shall not be less than 48h.
Curing: keep the coating surface wet within 7-10 days of coating spraying to enhance the performance of the coating.
