Passive Fire Protection with Intumescent Paint for Steel
NSP Coatings are experienced intumescent paint contractors, providing certified application services for steelwork across London, Kent, Essex, and the South East. We help architects, specifiers, and fabricators meet UK building regulations with expertly applied fire retardant paint that achieves required fire ratings and aesthetic finishes.
What Is Intumescent Paint?
Intumescent paint is a specialised fire resistant coating that reacts when exposed to heat. In the event of a fire, it swells to many times its original thickness, forming an insulating carbonaceous char that delays the transfer of heat to the steel structure beneath. This provides vital time for evacuation and fire service response.
Certified Intumescent Paint for Steel
Whether you’re working on new builds, refurbishments, or retrofit fire protection, we offer intumescent paint for steel beams, fire doors, columns, and structural frameworks. Products are tested to meet up to 2-hour fire protection ratings depending on the system and coating thickness.
We use leading systems from manufacturers such as Akzo Nobel, Nullifire, Sherwin-Williams, and others. Our application comes with a full intumescent paint certificate, giving peace of mind and helping you stay compliant.
Services We Offer
- Intumescent paint spraying to all RAL finishes
- Clear intumescent paint options where appearance matters
- Fire retardant white paint or black paint finishes available
- Advice on intumescent paint for doors and fire doors
- Fireproof paint exterior options for external steel
- Site or workshop application depending on project scale
Do You Need Intumescent Paint Over Spray Foam or Painted Surfaces?
We’ll assess the compatibility and recommend the best preparation and primer route to ensure bond integrity.
Intumescent Paint FAQs
Yes, but only with approved topcoats that don’t compromise performance.
This depends on steel dimensions, fire rating required, and the product used. Call us for a quick quote.
We offer services across London, Kent, Essex and the South East.
Why NSP Coatings?
- Full QA documentation included
- Over 25 years of experience
- On-site or in-house application
- Fast turnaround
- Our own transport for collection/delivery
