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The Thermoguard Thermocoat WI is a suitable intumescent paint for steel and cast iron that can provide up to 90 minutes fire resistance with a minimum number of coats. The white water based intumescent paint finish can enhance a building’s architectural or historic features. Optimised for universal beams, columns and other open section steel.
The heat of a fire triggers a catalytic reaction, causing the expansion of an insulating char layer up to 50 times the paint thickness. This layer keeps the steel below its critical temperature, thus maintaining the structural integrity of the building.
Steel and cast iron should be free from rust and millscale and primed with Thermoguard Steel Fire Paint Primer to 75 microns DFT (or alternative good quality anti-corrosive primer compatible with intumescent paints) in accordance with manufacturer’s instructions. Treat galvanised surfaces with Teamac Mordant Solution (T Wash) first before priming with Thermoguard Steel Fire Paint Primer. Thermoguard Steel Fire Paint Primer may be left without further overcoating or decorated with appropriate conventional paint where no fire resistance is required depending on level of exposure/environment.
The Thermocoat WO can be applied with a brush, airless spray or a roller and is water-based an low in odour. It can also be overcoated with a compatible topcoat to enhance the building’s architectural and design features.
Product performance assessment based upon UKAS/EGOLF Fire Test Laboratory Certification to BS 476 Part 21 – Fire resistance to load bearing elements of structures.
See Thermoguard Thermocoat WO for steel hollow sections: CHS, SHS, RHS. For exterior environmental steels, please use the Thermoguard Thermocoat S.
Once your project is complete, use our simple online process to get your FREE fire certificate. Most of our customers need a fire certificate to show that the work has been done correctly and the correct product has been used. These certificates are most often referred to as a “Fire Certificate” but in fact are really a certificate of supply. They indicate the amount of product supplied and the fire rating that this quantity of product would achieve over an agreed specified surface area/substrate.
Brand: Thermoguard
Use Case: Fire
Applications: Steel, Cast Iron
Test Certification: Certification to BS 476 Part 21 - Fire Resistance to load bearing elements of structures.
Fire Rating: 30 Minutes, 60 Minutes, 90 Minutes
Material: Water Based Intumescent
Finish: White
Drying Time: 2 Hours Brush/Roller, 4 Hours Spray
Recoat Drying Time: 4 Hours Brush, 10 Hours Spray
Topcoat Drying Time: 10 Hours Brush, 48 Hours Spray
Min. Application Temperature: 4°C Ambient
Fixing: Brush, Roller, Spray
Included: 1x Thermoguard Thermocoat WI Intumescent Paint for Steel
Size kg: 5kg, 20kg
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