Intumescent coatings & fire resistant coating

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Shaw Spray Ltd intumescent paint spraying contractor offer a comprehensive on-site intumescent spray painting & fire resistant coating service from initial enquiry to certificate.

All works are completed by our own professional intumescent coatings spray teams who are experienced in working on site and alongside other trades.

Intumescent paints are specialist coatings that provide up to 120 minutes fire protection on structural steel. The paint reacts to high temperatures, typically above 200 C,  by expanding up to 50 times its original thickness. This increase in volume and decrease in density provides insulation to the structural steel members against high temperatures and acts to delay or prevent structural failure in the event of a fire.

Available as water based and solvent based coatings, intumescent paints are quick to apply and provide a smooth and durable decorative finish  to structural steelwork in both internal and external locations. 

• Up To 120 Minute Fire Resistance
• Low VOC
• Colour White
• Smooth Matt Finish
• Quick Spray Application
• Compatible Topcoats Available

• Up To 120 Minute Fire Resistance
• Internal & External Structural Steelwork
• Single Pack
• Quick Spray Application
• Compatible Topcoats Available

The secret behind intumescent paint’s protective power lies in its chemistry. When exposed to temperatures of 200-250ºC, a reaction is triggered which causes intumescent paint to expand into a foam-like solid called a char. This char can be up to 50 times the thickness of the original paint layer and is incredibly slow-burning. Depending on the paint and application method, this char will insulate the underlying substrate from the heat and fire for 30, 60, 90, or up to 120 minutes, providing invaluable extra time to evacuate or get the fire under control. In this way, intumescent coating is part of a building’s fire protection system.

The benefits of intumescent paint as a fireproofing method include;

A duplex system uses fire retardant and intumescent paint together to increase the level of fire protection.

• Can be used for a wide range of materials including soft and hardwood, concrete, metal (including structural steel), plaster, MDF, and brick
• Is the most aesthetically appealing fireproofing method and does not detract from the structural, aesthetic and architectural value of a building
• Suitable for use on interior and exterior structures
• Durability means they can be applied off-site or on-site
• Easy to apply and maintain
• Can be overcoated with a fire retardant paint which releases a flame damping gas when exposed to fire, impeding the spread of the flames and extending the time til the intumescent layer is triggered.