Specialist Team
Experienced in structural-steel coatings
Planned Site Safety
Project-specific RAMS and site controls
Programme Planning
Sequenced around access, trades and curing
Documented Work
Application and QA records for the agreed scope

Intumescent Coating Services for Structural Steel

We apply intumescent coatings to installed and pre-install structural steel, planning the work around the project stage, substrate condition, access, programme and accepted coating-system requirements.

Surface Preparation for Structural Steel

Steel condition, contamination, existing coatings and the selected system determine the preparation required. We review the available information and accessible surfaces, then agree a suitable method before application.
View Preparation Methods
Graco 695 XT airless sprayer with a yellow bucket in an unfinished industrial interior with metal framing and construction equipment.
Hand in black glove holding a blue infrared thermometer showing 20.1°C and a black temperature and humidity meter showing 18.5°C, 73.2% relative humidity, and 13.6°C dew point.
Interior construction site with yellow steel support beams surrounded by red safety barriers and exposed ceiling ducts and wiring.
Selected Projects

Selected Structural-Steel Projects

Examples of intumescent application across commercial, refurbishment and live working environments.
Our Process

From Project Information to Documented Handover

Each project follows a defined sequence from information review to application and handover. We confirm the scope, prepare the steel, control application and record the agreed inspections.
Discuss Your Project
Interior construction site featuring painted steel beams, scaffolding, ladders, and a ceiling with circular recessed lights.

Project and Information Review

We review the fire strategy, structural information, coating specification and available steel schedule. Accessible substrate conditions, existing coatings and missing information are identified before work starts.

Surface Preparation

Steel is prepared by the agreed method—abrasive blasting, dry-ice cleaning, mechanical preparation or cleaning and degreasing—according to its condition and the accepted system requirements.

Controlled Intumescent Application

The selected system is applied in planned coats. WFT readings help control wet coat build, while required ambient and substrate conditions are checked against the product’s application limits.

Inspection and Documented Handover

After sufficient drying or curing, DFT is measured against the accepted member schedule. Agreed product, application, inspection, repair and deviation records are then issued for project-team review.

From the Founder

“After a decade in the protective coatings industry, I built FireCoatings to deliver fire protection without unnecessary noise — just clear documentation, a controlled application process, and professional site practice.”

Myles Howson
Managing Director
why
Why Structural Steel Is Protected
Steel changes as it heats
Steel loses strength and stiffness as its temperature rises. The limiting temperature and required fire-resistance period depend on the member, loading and accepted project design.
Intumescent coatings form an insulating char
When exposed to heat, an intumescent coating expands to form a char layer that slows heat transfer to the protected steel.
The project design defines the requirement
The fire strategy and structural design determine whether protection is required and the performance to be achieved. We apply the selected system to the accepted project information and manufacturer documentation.
Close-up of a white-painted metal bracket with bolts securing a diagonal support beam to a vertical column in an industrial setting.
Application Records
Application QA and Documented Handover
We record the agreed checks for our work scope so the project team can review what was applied, where it was applied and how identified issues were addressed.
Hand wearing a blue glove holding a metal wet film thickness gauge with various notch sizes against a white surface.
Coating Thickness
WFT and DFT Checks
WFT readings guide coat build during application. After sufficient drying or curing, mapped DFT readings are checked against the accepted member-specific schedule.
Hand in black glove holding two temperature and humidity measuring devices showing 20.1°C and 18.5°C with 73.2% humidity.
Site Conditions
Application-Condition Checks
Required ambient and substrate conditions are checked at agreed intervals and compared with the selected product’s application limits.
Open back of a white van containing a pallet wrapped in plastic with multiple white containers and a metal bucket, marked with flammable liquid and fragile labels.
Product Records
Product and Batch Records
Product identity, batch information and application dates are recorded where included in the agreed project QA plan and linked to the relevant work area.
Blog

Intumescent Coating Insights and Project Guidance

Client Feedback
"Thank you Myles and team for all your hard work on this one. It wasn't easy working around the schedule but you got it done without causing any further issues. It was a pleasure to work with you."
Chris
Project Manager, Millcroft Services
Interior of a construction site with white-painted steel beams and yellow support poles.
Client Feedback
"NuColour worked efficiently around our programme and delivered on time at late notice. The team were organised, flexible, and professional throughout the works."
Ciprian
Site Manager, Principal Contractor – GEMCO
Close-up of a bright yellow structural steel column with rivets installed on a construction site indoors.

Contact Fire Coatings

If you’re planning structural steel fire protection works or need specialist support with intumescent coatings, we’re here to help.
"Good lads, easy to work with, delivered the intumescent works on our Piccadilly project professionally and kept on top of QA throughout."
— Ciprian
GEMCO Contracts
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"Good lads, easy to work with, delivered the intumescent works on our Piccadilly project professionally and kept on top of QA throughout."
— Ciprian
GEMCO Contracts
Areas We Cover

On-Site Coverage Across London and the Home Counties

Our on-site teams work across London, Greater London, Essex, Kent, Surrey, Hertfordshire, Oxfordshire and Berkshire. Projects outside these areas are considered by prior agreement.