Services
On-ste Intumescent

On-Site Intumescent Coatings

Engineered Fire Protection Delivered Under Live Site Conditions

On-site intumescent coating protects installed structural steel through disciplined processes, controlled application and continuous verification. Every stage is managed to ensure the applied system performs exactly as tested, specified and approved.
Assessment

Steel Condition Determines the Preparation Method

The existing condition of installed structural steel is assessed on site to determine the correct preparation approach. Corrosion, mill scale, residual coatings and surface contamination are evaluated to establish the preparation method required to achieve reliable adhesion and compliant fire-protection performance.

Preparation methods are selected to align with manufacturer requirements, fire-rating specification and site constraints.
Application

Airless Spray for Uniform Coverage and WFT Control

Intumescent coatings are applied using professional airless spray systems to achieve consistent film build across all steel profiles, including complex geometries, connections and boxed sections. Controlled spray application ensures uniform coverage, accurate Wet Film Thickness and repeatable results to specification.
Consistent coverage across all steel profiles
Real-time Wet Film Thickness control
Reduced overspray and material waste
Application & Environment

Controlled Application and Environmental Assurance

Pre-install intumescent coatings are applied using tightly controlled methods to ensure accuracy, consistency and compliance. Application technique and environmental conditions are managed together, allowing precise Wet Film Thickness control, predictable curing and fully verifiable fire-protection performance.
01
Application
Airless Spray for Uniform Coverage and WFT Control
Intumescent coatings are applied by airless spray to achieve uniform coverage and controlled film build across every face, edge and profile of the steel member. Application is carried out in defined stages and passes, ensuring specified Wet Film Thickness targets are achieved without over-application or defects.

This method supports predictable curing, consistent fire performance and clean handover documentation.
02
Environmental Monitoring & QA
Conditions Logged and Verified Throughout Application
Environmental conditions are monitored continuously during pre-install application. Substrate temperature, ambient temperature, relative humidity and dew point are recorded and maintained within manufacturer-specified limits.

Environmental logs form part of the project compliance record, alongside WFT measurements and product traceability data.
Environmental Control

Conditions Monitored and Maintained Throughout Application

Environmental conditions have a direct impact on adhesion, curing and fire-protection performance. Ambient temperature, substrate temperature, relative humidity and dew point are monitored before and during application to ensure all works remain within manufacturer-specified limits.

Ambient temperature maintained within specification

Substrate temperature verified prior to application

Relative humidity and dew point monitored continuously

All environmental readings are recorded as part of the project quality assurance file, providing evidence that application conditions met compliance requirements.
Wet Film Thickness Verification

Fire Performance Confirmed During Application

Wet Film Thickness is monitored continuously throughout spraying using calibrated gauges. Readings are taken across all coated surfaces to confirm the specified build is achieved. Any deviation from specification is corrected immediately to maintain system integrity and fire-rating compliance.

  • Gauges checked and calibrated before each application phase

  • Readings logged at defined intervals

  • Immediate corrective action where required

Ventilation & Containment

Protecting Operatives, Surroundings and Coating Performance

Ventilation and containment are actively managed throughout application. Airflow is controlled to maintain air quality for operatives and support coating performance, while containment measures protect adjacent trades, finishes and occupied areas on live sites.

Airflow managed to support coating performance and safety

Containment deployed where required

Air quality monitored throughout works

Access & Coordination

Safe Access Selected for Each Phase of Work

Access solutions are selected based on task requirements, steel geometry and site conditions. MEWPs, scaffolding or secure platforms are used as appropriate, with works sequenced alongside other trades to maintain safety, efficiency and programme continuity.

Access method selected to suit environment and task

Application sequenced with other site activities

Safe positioning maintained at all times

Health & Safety
Inspection & Quality Assurance

Verification Embedded at Every Stage

Inspection is embedded throughout the application process. Each stage is checked and documented before progressing, reducing the risk of defects and ensuring consistency across the installed system. Quality records form part of the final compliance documentation issued at project completion.
Myles Howson
Managing Director
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From the founder

“FireCoatings exists to raise the standard of how structural steel fire protection is delivered, through technical control, clear communication and professional site practice. That commitment underpins every project we take on.”

Myles Howson
Managing Director
Testimonials
“Working with Foster & Reeves was a completely different experience from other contractors we’ve dealt with in the past. From day one, they took the time to understand our operational needs.”
Sarah Donovan
CEO, Harborview Development
Testimonials
“Working with Foster & Reeves was a completely different experience from other contractors we’ve dealt with in the past. From day one, they took the time to understand our operational needs.”
Sarah Donovan
CEO, Harborview Development
Copyright 2020 © FireCoatings.co.uk is a trading name of NuColour Ltd.
Registered Company in England & Wales. Company No: 12547322. VAT Reg: 451940005.
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FireCoatings.co.uk operates under NuColour Ltd, where all compliance, safety, and operational standards are centrally managed. This structure ensures consistent quality, robust governance, and specialist delivery on every project.

For specialist commercial spraying, cladding coatings, and roof restoration services, visit our sister site at londonsprayers.co.uk.
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