What is fire Protective paint?

Fire retardant Paints are usually made of organic material and are several microns thick. Expandable fireproof paint coating Despite its very small initial thickness, in case of fire and heat, by expanding and creating a layer much thicker than the original thickness, they protect their bottom surface against fire and heat. Expandable fire-retardant paint coatings are mainly used on flammable materials to delay the ignition of the protected surface or to prevent the flame from advancing on the surface. For this purpose, it is necessary to form a solid porous mass of expandable fire retardant paint. This requires that in the first stage, a chemical substance leaves a solid substance due to burning.

The remainder of the expanded paint is carbon. For this purpose, it is necessary to have at least three other substances, one with high carbon content and the other with an acidic agent that can react with the raw material at the right temperature and lead the reaction to the formation of carbon instead of combustion. The third material is gas production material to create a spongy structure in the solid residue by releasing steam and gas at the right temperature.

How To Apply Fire Protective Coating

In order to apply fireproof coatings on metal structures, after preparing the surface, first, a suitable primer should be applied on the metal structure and then fireproof coating.

This type of coating is applied easily and in a very short time and with different tools (airless paint sprayer, brush, and roller) and can be applied on all surfaces with any angle and fracture. The thickness of the paint applied can be defined from about 0.5 mm to 2 mm depending on the type and shape of the structure, the thickness of the sheet, the environmental conditions of use, the extinguishing facilities, and other factors.

Read More About What is Paint Primer

If parts of the surface that are covered by swollen fire-retardant coatings are exposed to impact and need to be repaired, the surface can be repaired easily and even with a brush. The final surface of this type of fireproof coating is a smooth surface so that after finishing the coating operation, there is no need to smooth the surface. In order to protect the swollen fireproof coating, it is recommended to use a layer of paint suitable for the fireproof type.

A Variety Of Fire Retardant Paints

  • Solvent-based blowing paints
    These paints are a bulky solvent-based protective coating against fire for indoor and outdoor applications and are used to increase fire resistance in the coating of steel beams and columns. In these paints, a solvent is used for dilution. This type of fire retardant paint is mostly used in open and humid environments.
  • Blue base puff colors
  • Cement-based fire-retardant coatings (vermiculite)

Read More About Concrete Polishing

There are usually four different compounds used in expandable fire retardant paints: polyhydric compound for the production of carbon during a fire, dehydrating agent, foaming agent, or gas and resin which is the color bonding agent.

This fire-retardant paint is applied in a thickness of 5 mm and can protect steel or concrete structures against fire for up to 2 hours. Expandable fire retardant paint When exposed to fire, due to a series of chemical reactions, it releases cooling gases, increases in volume and fights fire. In addition, the expandable fire retardant paint produces a layer of charcoal insulation for insulation. Its thickness is up to 20 times the initial amount of paint. Instead of expandable fire-retardant paint, puffed foam containing millions of small fire-resistant cells are used.

Read More About 3D Epoxy Flooring

This fire-retardant foam, which is made from expandable fire-retardant paints, acts as insulation, delaying the contact of the flame or fire with the surface, and as a delay barrier, prevents the surface from overheating rapidly and igniting. The expandable fire-retardant paint, which has now been turned into insulating foam, prevents heat from reaching the bottom surface for about two hours and delays the spread of the flame so that firefighters have a chance to contain the fire in the meantime.

Fire retardant paint is a type of fire retardant coating. these paints are expandable paint and one of the most diverse compounds of water-based ceramic nanocomposites. These fire-retardant paint coatings are based on silica, which produces a layer of charcoal insulation (char) as soon as it is exposed to fire, which protects the bottom surface against fire. The maximum thickness of this type of fireproof coating is 4 mm. This compound has a very small amount of volatiles and a combination of properties with very high fire resistance, anti-corrosion, heat insulation, and anti-vapor. These types of fire-retardant paint insulators are single-component and can be easily used in various applications.

Advantages Of Fire Retardant Paints

These paints are water-based compound that foams in the face of fire. These paints are anti-vapor, which prevents corrosion under the surface. These fire protective paints have very little thermal conductivity. The final coating with these colors becomes hard and durable. These colors are environmentally friendly. fireproof paints are simple to apply and do not require much complexity. They can be run on equipment with any complex geometry. The use of these fire retardant paints preserves the appearance at high temperatures. The final weight does not change the surface much. It has high adhesion to the metal surface. These paints do not produce smoke and toxic gases. It has high moisture resistance. In addition to fire resistance, these paints are also resistant to the growth of algae and bacteria.

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