Intumescent Paint Spraying

Professional passive fire protection for steel columns and beams

Sprayzone offer a comprehensive on-site intumescent spray painting service from initial enquiry to issue of a certificate of supply at the end of the project.

Intumescent paint spraying

Intumescent paint is a specialist protective coating for the fire protection of structural steel. The intumescent coating expands at high temperatures and forms a protective, insulating layer on the surface of the steel. This protects the steel structure in the event of a fire, buying valuable time for anyone in the building to escape and for the fire to be brought under control.

Sprayzone are experienced applicators of intumescent paint and are approved by Nullifire, the market leading intumescent paint manufacturer. Offering both solvent-based and water-based options we can fire protect steel columns and beams from 30 – 120 minutes.

If you would like a competitive quotation, please get in touch with our experienced and friendly team with the following information:

  • Intumescent paint specification
  • Structural steel sizes
  • Structural steel drawings
  • Duration of fire protection (30, 60, 90 or 120 mins)

Intumescent paint spraying contractor

All works are completed by our own professional spray teams who are experienced in working on site and alongside other trades.

Approved applicators

We are approved applicators for Nullifire.

Intumescent paint spraying contractor

All works are completed by our own professional spray teams who are experienced in working on site and alongside other trades.

What is intumescent paint?

Intumescent paints are specialist coatings that provide up to 120 minutes fire protection on structural steel. The paint reacts to high temperatures, typically above 200 C,  by expanding up to 50 times its original thickness. This increase in volume and decrease in density provides insulation to the structural steel members against high temperatures and acts to delay or prevent structural failure in the event of a fire.

Available as water based and solvent based coatings, intumescent paints are quick to apply and provide a smooth and durable decorative finish  to structural steelwork in both internal and external locations. 

intumescent paint spraying

Key properties

Water based basecoat

Up to 120 minutes fire protection

Low VOC content

Smooth matt finish

Quick spray application

Internal application

Solvent based basecoat

Up to 120 minutes fire protection

Single pack

Quick spray application

Smooth off-white finish

Internal or semi-exposed application

Rapid-Cure

Up to 120 minutes fire protection

Two pack

High build

Fast curing

1 hour weather resistance

Intumescent paint spraying case studies

"We have contracted Sprayzone for a few jobs now and have always found them easy to deal with."
Sue
Epic Display

Talk to our friendly team

Talk to us about your next spraying project