Surface treatment and storage method of ultra thin fireproof coating for steel structure

Surface treatment and storage method of ultra thin fireproof coating for steel structure

It has remarkable fire and heat insulation, moisture and corrosion resistance.It is widely used for steel structure fire protection of indoor and outdoor buildings and structures with fire resistance time less than 2.5 hours.A new type of fire retardant coating for steel structure is developed.It is characterized by the formation of uniform and dense sponge like foam insulation.The insurance of national and people’s life industry has the primary meaning. 

It is especially suitable for the protection of exposed steel structures in sports venues and industrial workshops. Application: ultra thin steel structure fire retardant coating is important for fire protection of indoor steel structures and steel products in industrial and civil buildings.It can effectively advance the fire resistance ability of steel structure, implement the requirements of building imaginary fire protection standard, and have good decoration results.

Construction request

Details treatment of ultra thin steel structure fire retardant coating:

After sand blasting, the rust can reach Sa2.5, and the details of steel substrate coated with fireproof coating for steel structure should be strictly removed of water and rust.Manual derusting can reach ST3 level or above.The details of rust removal shall be treated with alkyd red lead or epoxy antirust paint.

Construction method

Low pressure airless spraying can also be used.In accordance with the fire resistance limit, the coating can be directly divided into two layers, roller coating or brush coating.After the surface of the first coat is dry, the second coat shall be applied.When operating the coating, the fireproof sealing finish must be operated to prevent the crushing of fire retardant coating by rain water and high humidity environment. The consumption is 0.25kg/m2. Before operation, it should be fully stirred until there is no sediment.The relative humidity should be less than 85%.

Coating thickness: the wet film thickness of each fireproof paint shall be ≤ 250um

Coating distance: dry surface

Dilution and cleaning: 2001 special dilution cleaning agent.

Or by the product ethics custody agency arbitration.If it still does not conform to this technical standard, the rules for acceptance and delimitation: if the ultra-thin steel structure fire retardant coating unit finds that the moral character of the product does not conform to the provisions of this standard, both parties shall jointly recheck.The operator has the right to return the goods.

Marking, transportation, packaging, storage:

The unused coating package shall be re sealed to prevent drying and easy to reuse. Under the conditions suitable for transportation and storage of this standard, the storage period is one year from the date of production of the product.The outer wall of each can of product shall be marked, declared, product title, production batch number, name of production unit, place and production date.The tin can is sealed and packed, with a net weight of 20kg per can, and placed in a cool, ventilated and rigid place.The products should be protected from rain, sunlight, moisture intrusion and sealing during transportation.


Post time: Jul-04-2020