Intumescent paint for structural steel, applied right first time.
We apply intumescent fire protection paint to structural steelwork in a controlled offsite facility — delivering 30 to 120 minute fire ratings with documented film thickness on every member.
How intumescent paint protects steel in a fire
Steel loses strength quickly as it heats. Intumescent paint reacts at high temperature, expanding many times its applied thickness into a stable, insulating char. That layer slows heat transfer into the section, buying the time required by the building's fire strategy.
Because it is a thin-film coating, intumescent paint keeps the clean lines of exposed steel — ideal for architectural frames, stair cores, bridges and industrial structures.
Offsite intumescent coating, done properly
Specification check
Section factors and fire engineer's schedule reviewed before pricing.
Controlled application
Blast, prime and intumescent paint applied in heated booths.
DFT recorded
Wet and dry film readings logged for every single member.
Certified handover
QA pack and system data delivered with the steel.
Intumescent paint FAQs
- 30, 60, 90 & 120 minute ratings
- Approved applicators of leading systems
- UK-wide delivery and site teams
What is intumescent paint?
Intumescent paint is a thin-film fire protection coating. When exposed to fire it swells into an insulating char that slows the rate steel heats up, helping the structure keep its load-bearing strength for the rated period.
What fire ratings can intumescent paint achieve?
We apply systems for 30, 60, 90 and 120 minute ratings. The thickness needed depends on the section factor of each member and the fire engineer's schedule.
Why apply intumescent paint offsite?
A heated, controlled facility gives stable temperature and humidity, so coatings cure as the manufacturer intends. It removes weather delays and scaffold, and takes a trade off the site programme.
How do you prove the coating thickness is correct?
Wet and dry film thickness readings are taken and recorded for every member, and a full QA pack travels with each delivery for the fire engineer and main contractor.
Do you cover the whole of the UK?
Yes. We coat steel for fabricators and contractors nationwide, with mobile teams for on-site touch-ups and remedial work.