Before users buy thick fireproof paint will be concerned about the use of thick fireproof paint what are the advantages? The following is a brief introduction to the advantages of indoor thick fireproof paint: thick fireproof paint is coated between 7-45mm, indoor thick fireproof paint is generally used for building firewalls, floors and steel structures, or for thermal insulation in the building composite layer, fire resistance limit 0.5-3.0h. Thick fire retardant coatings for steel structure have a long fire protection time: the focus of thick fire retardant coatings is the problem of fire resistance limit, that is, the general fire resistance time. On the surface of the steel structure coated with thick steel structure fireproof coating, in case of fire, the coating itself is non-combustible and low thermal conductivity to form a fire insulation protective layer, improve the fire resistance limit of the steel structure. After the thick fireproof coating is sprayed on the surface of the steel member, the fire-resistant thermal insulation protective layer is formed by relying on the non-flammability and low thermal conductivity of the coating itself in case of fire, which effectively improves the fire-resistant limit of the steel structure. According to the national standard, the fire resistance time of thick steel structure fire retardant coating can reach 3 hours. Thick fireproof paint health and environmental protection: health and environmental protection is not in that field is the eternal theme, fireproof paint is the same! Steel structure fire retardant coatings are divided into ultra-thin, thin and thick three types, only thick steel structure fire retardant coatings are the principle of inorganic compounds, and the advantage of inorganic substances is that they will not produce chemical reactions, fire insulation with physical principles. Thick fireproof coating has 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, no harm to the human body, is a healthy and environmentally friendly fireproof coating. These advantages of thick fireproof coatings are also one of the reasons why more and more users of steel structure engineering choose indoor thick fireproof coatings.
The thick fireproof coating is made of Portland cement, expanded vermiculite and perlite as main raw materials. Mixing time ≥10min.
Thick fireproof coating ratio: coating powder: glue: water = 2:1:2. Other coating construction ratio: coating powder: water = 1:1.2. No glue
This information is taken from experience without authorization
The construction thickness of a thick fireproof paint is 3-4mm, and the basic drawing treatment is carried out, and the remaining paint construction is 6-8mm, and the bad condition of each construction interval is more than 12 hours
After the construction of the steel structure thick type fire protection coating is completed twice, the steel wire mesh is added to fix the indoor thick thin-walled steel structure fire protection coating. The steel wire mesh is required to be compacting until the coating thickness of the non-expansive indoor steel structure fire protection coating reaches 30±2mm.
The indoor ambient temperature during the construction of thick fireproof paint is 15-25 ° C, and the maintenance condition is carried out according to the standard state after the thickness is required to be more than 30 days.
Thick fireproof paint should be stored in a cool, dry warehouse, effective storage period of 6 months.