Offsite intumescent
& industrial coating
contractors UK.
SSL Environmental Group delivers top-tier intumescent painting and specialist coatings for steelwork fabrication companies across the UK and Europe — applied offsite, in a temperature-controlled environment, to the highest fire protection and finish standards.
Fabricators, main contractors and infrastructure clients across the UK.
Our Certificates
We are passionate about acquiring certifications from trusted and recognised organisations that reflect our commitment to professionalism, safety and quality assurance on every project.
Our Manufacturers
We take pride in partnering with trusted manufacturers who share our commitment to quality and innovation. Each one upholds the highest standards to ensure our coatings meet your expectations for reliability and performance.
One specialist team for structural steel protection.
Offsite Intumescent Coating
Temperature-controlled application of thin-film intumescent systems to structural steel — 30 to 120 minute fire ratings.
Industrial Coatings
Specialist protective and decorative coatings applied in our controlled offsite facility to a fabricator-ready finish.
Network Rail & Highways
Coating systems engineered for critical infrastructure — rail, bridges and highways, delivered to sector standards.
Onsite Coating Support
Mobile spray teams for on-site remedials, touch-ups and works that cannot be delivered offsite.

Protection and finish, engineered offsite.
Intumescent fire protection sits on the critical path of most steel-frame projects. By moving application offsite into a temperature-controlled facility, we take weather, access and site coordination out of the equation — delivering steelwork that arrives coated, cured, quality-checked and ready to erect.
- Temperature-controlled application for consistent film build
- Approved applicators for all major intumescent systems
- Full DFT records, WFT checks and QA documentation
- Reduced site programme, no weather delays, no site access issues
Key advantages of offsite intumescent coating.
Applying under controlled conditions accelerates construction, simplifies service installation and produces a superior, repeatable finish that meets or exceeds regulatory standards.
Controlled Environment
Temperature and humidity controlled booths ensure correct cure and consistent film build every time.
Programme Certainty
Steel arrives coated and ready to erect — no scaffolding, no segregated site areas, no weather delays.
Verified QA
Full WFT, DFT and adhesion records with every load, aligned to project specification and warranty.
Coated, loaded and delivered.



From specification to coated delivery.
Specification Review
We review the fire engineer's schedule, section factors and coating specification, then confirm the system and DFTs.
Programme & RAMS
Delivery slots aligned to your fabrication programme, with method statements, ITPs and system data sheets issued upfront.
Coat Offsite
Blast, prime, intumescent and topcoat applied in our controlled facility with WFT/DFT recorded per member.
QA & Deliver
Load-by-load QA pack, coated steel delivered to site, ready to erect — with warranty documentation on completion.
Delivered without disruption.
"Steel turned up coated, DFTs recorded and paperwork faultless. Took a full trade off our site programme."
"Fast quoting, honest lead times and a finish our client actually noticed. Exactly what an offsite partner should be."
"DFT readings were spot on across the frame and the coating held up through transport and erection with no touch-ups."
Steelwork to coat? Let's talk.
Free quotations and site surveys for fabricators and main contractors across the UK.
