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Steel Intumescent

Passive Fire Products extensive range of fire retardant coatings.

Intumescent paints for steel, structural steel and cast iron at Passive Fire Products are available with 30, 60, 90 and 120-minute fire protection, to accompany fire retardant paints for other surfaces.

The intumescent paints for steel are available for interior and exterior use and come in a full range of colours, with full product descriptions available on each item. Most of our fire-resistant paints are easy to apply by brush, roller or spray.

Meeting the specification required by building regulations - how much protection can be obtained with listed coatings, what the differences are between fire protection required from your specification.

Fire test standards when using intumescent coatings on structural steel constructions are European Union: EN 13381-8 (Replaces national Standards in Europe) and United Kingdom: BS 476-20/21 (Commonly referred to in EU, Middle and Far East).

Leading manufacturers and intumescent product ranges, include Aithon, Nullifire, Thermoguard.

For clarification on minimum requirements before buying one of our fire-stopping products, please review the information. A written specification should be obtained from our Technical Department for your project prior to use to ensure the product will be suitable.

If there is a product you cannot find, please contact our Technical and Sales Support Team on 0333 043 0018

Envirograf EP/FS/TCW Top Coat

EP/FS/TCW is supplied ready for use and does not need thinning. Apply 1 coat at 10 – 12m2 per litr...

Envirograf EP/FS/P Water-Based Primer for Steel

A red water-based primer for use on internal/external steelwork....


The coating upgrades the insulation and integrity of the installation. The coating is non-toxic, emi...

Nullifire PM015 Aluminium Epoxy Primer

Nullifire primers are designed to protect the surface of structural steel from corrosive attack.Null...

Nullifire SC601 Intumescent Base Coat: On-Site & Off-Site (Off-White)

SC601 is optimised to provide 60 minutes fire resistance to ‘I’ section beams and columns, hollo...

Nullifire FC101 Intumescent Coating Repair Filler

FC101 can reinstate the fire rating to Nullifire coatings where minor damage has occurred.The filler...

Nullifire SC804 Intumescent Basecoat: On-Site, Water-Based (White)

SC804 is optimised to provide 90 minutes fire resistance to ‘I’ section beams, columns, hollow c...

Nullifire TS134 Acrylic Polyurethane Top Seal

TS134 provides a top seal to protect the intumescent coating while also providing an outstanding aes...

Sherwin Williams Firetex FX1003

FIRETEX FX1003 is designed for site application by airless spray, to provide fire resistance for up ...

Sherwin Williams FIRETEX 5062

Waterborne intumescent coating designed for internal structural steelwork.Provides up to 90 minutes ...

Jotun Steelmaster 600WF and 1200WF

Jotun Steelmaster is a one component waterborne acrylic thin film intumescent coating. Independently...

Nullifire SC801 Water-Based Intumescent Basecoat

Nullifire SC801-120 Intumescent Basecoat is a waterborne, white, thin film intumescent coating for t...

Nullifire SC802 Water-Based Intumescent Basecoat

Nullifire SC802 On-Site Water-Based Intumescent Basecoat is a water- based, white, thin film intumes...

Nullifire PM020 Steel Primer Red

Nullifire PM020 High Build Alkyd Primer is a fast drying steel primer that provides corrosion protec...

TS815 Solvent-Based Acrylic Top Seal

TS815 Solvent-Based Acrylic Top Seal is an eggshell decorative top seal. It is primarily for use wit...

Nullifire S708 Durable Water-Based Intumescent Basecoat

Nullifire S708 Durable Water-Based Intumescent Basecoat is a white thin film intumescent coating for...

Envirograf EP/FS/IN/WB Steel Intumescent Paint Coating

INTUMESCENT STEEL PAINT FOR STRUCTURAL STEEL AND CAST IRONWater based intumescent coating for the pr...

Nullifire TS816 Water-Based Acrylic Top Seal

Nullifire TS816 Water-Based Acrylic Top Seal is a waterborne, acrylic eggshell decorative top seal. ...

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