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The use of structural steel is a vital part of construction work, but at times the strength of steel deteriorates quickly due to high temperatures in case of fire. Application of fire rated paints on the steel offers a good passive fire protection system because it helps in preventing heat transmission and maintaining structural integrity. This paper aims to investigate vermilion based and intumescent coating systems.
Structural steel is widely used in commercial buildings, high-rise developments, industrial facilities and critical infrastructure because of its strength, versatility and design flexibility. However, when exposed to high temperatures during a fire, steel can rapidly lose its strength and load-bearing capacity. Without adequate fire protection, this may result in excessive deformation and potential structural failure.
Vijay Systems Engineers Private Limited (VSE) offers specialised fire-rated coating systems for structural steel, including Vermiculite-based cementitious coatings and Intumescent coatings. These systems are designed to provide effective passive fire protection for structural steel members and help maintain their fire-resistance performance for the specified period.
Both VSE’s Vermiculite and Intumescent Steel Fire Protection Systems are tested as per ASTM E119 and UL 263 standards, providing tested solutions for the protection of structural steel against fire exposure.
Although steel is a non-combustible material, its mechanical strength reduces significantly when exposed to elevated temperatures. During a fire, unprotected structural steel can heat up rapidly, affecting its ability to support the loads for which it was designed.
Fire-rated coatings act as an insulating barrier between the fire and the steel substrate. By reducing or delaying the transfer of heat to the structural member, these systems help the steel maintain its load-bearing capacity for the required fire-resistance period.
The selection of the appropriate fire protection system depends on several factors, including the type of steel member, required fire rating, section factor, exposure conditions and project specifications.
VSE’s Vermiculite-based cementitious fire protection coating is designed to provide robust and durable passive fire protection for structural steel.
The coating forms an insulating layer around the steel member, helping to protect it from the intense heat generated during a fire. Vermiculite-based systems are particularly suitable for projects where a durable, high-build fire protection solution is required.
The system can be applied to various structural steel members, including:
Vermiculite-based coatings are an effective solution for a wide range of commercial and industrial applications. The required thickness is determined based on the applicable tested system, steel profile, section factor and required fire-resistance rating.
VSE Intumescent Steel Coating provides a specialised fire-rated coating solution for structural steel where architectural appearance, space efficiency and design flexibility are important considerations.
Under normal service conditions, an intumescent coating forms a protective coating on the steel surface. When exposed to high temperatures during a fire, the coating expands to form an insulating char layer. This expanded layer helps reduce the rate of heat transfer to the steel substrate.
Intumescent coatings can be particularly suitable for exposed structural steel and projects where a thinner and more aesthetically compatible fire protection solution is required.
The coating thickness is determined based on the required fire rating, steel section, section factor and the applicable tested or approved system.
Both Vermiculite-based and Intumescent coatings provide effective passive fire protection for structural steel, but they are suited to different project requirements.
Vermiculite-Based Coating | Intumescent Coating |
| Cementitious, high-build fire protection system | Specialised reactive fire protection coating |
| Forms an insulating protective layer | Expands during fire exposure to form an insulating char |
| Suitable for robust commercial and industrial applications | Suitable where a thinner profile and architectural appearance are important |
| Can be applied to a wide range of structural steel members | Well suited for exposed and architecturally visible steel |
| System thickness is based on the tested design and project requirements | Coating thickness is determined based on steel profile and tested system requirements |
The final system selection should always consider the project specifications, environmental conditions, required fire-resistance period, steel profile and applicable test data.
Fire protection performance must be supported by recognised testing and system design. Both VSE’s Vermiculite-based Steel Coating and Intumescent Steel Coating Systems are tested as per ASTM E119 and UL 263 standards.
These standards evaluate the fire-resistance performance of building construction and structural elements under controlled fire exposure conditions.
The tested performance of a fire protection system depends on the complete system configuration, including the type of steel member, coating thickness and application conditions. Therefore, the appropriate system should be selected and applied in accordance with the relevant test reports, technical documentation and project specifications.
VSE’s fire-rated steel protection systems can be considered for a wide range of applications, including:
Protection for structural steel columns, beams and other load-bearing steel members used in commercial developments, offices and high-rise projects.
Robust passive fire protection for structural steel used in factories, warehouses and manufacturing facilities.
Fire protection for structural steel in thermal power plants, industrial projects and other critical infrastructure installations.
Suitable fire protection solutions for structural steel, subject to project requirements, environmental conditions and applicable specifications.
Fire-rated coating solutions for structural steel used in large and complex infrastructure developments.
Passive fire protection for structural elements supporting facilities where fire safety and continuity of operations are essential.
At Vijay Systems Engineers, we understand that effective fire protection is not achieved product, determining the required thickness and ensuring proper application and quality control.
Our technical team can support consultants, architects, contractors and project teams with:
Proper surface preparation, application procedures and thickness control are essential to achieving the intended performance of the fire protection system.
In addition to fire-rated coatings for structural steel, Vijay Systems Engineers provides a comprehensive range of passive fire protection solutions, including firestop systems, penetration sealing, fire barriers, fire-rated partition systems and specialised fire protection products.
This integrated approach enables VSE to support customers with complete compartmentation and structural fire protection solutions for buildings and industrial facilities.
With extensive experience in passive fire protection, Vijay Systems Engineers is committed to delivering reliable, tested and technically supported fire protection solutions for critical applications.
Whether your project requires the robust insulation of a Vermiculite-based cementitious coating or the architectural flexibility of an Intumescent coating, VSE offers solutions designed to meet the fire protection requirements of structural steel.
Choose Vijay Systems Engineers for tested Fire Rated Paint for Steel – Vermiculite and Intumescent Coating Systems designed to protect structural steel when it matters most.
Vijay Systems Engineers
Passive Fire Protection | Vermiculite Steel Coating | Intumescent Steel Coating | Fire Rated Paint for Steel
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