Nullifire

What Nullifire does

Nullifire is a UK-headquartered brand specializing in passive fire protection products for the construction industry, founded in 1973 and now operating as a core brand within Tremco CPG Europe, itself a division of RPM International Inc. (NYSE: RPM). The company manufactures intumescent coatings for structural steel protection (up to 120 minutes fire resistance) and a comprehensive fire stopping product portfolio including cavity barriers, sealants, foams, coated stone wool batts, insulation wraps, and intumescent straps (with fire resistance up to 240 minutes for certain products). Proprietary technologies include Optifire traceability technology, GXT (Graphite eXpansion Technology) used in the FZ100 Fire Safe Zone system, and the Nullifinder solutions selector tool.

The company serves architects, specifiers, contractors, installers, and main contractors across commercial, residential, institutional, and government construction projects. Its go-to-market combines a UK and Ireland distributor network with direct sales support for major projects, including its own delivery fleet in the London/M25 area, and benefits from Tremco CPG Europe's broader European office footprint spanning 15 countries. Revenue is generated through hardware product sales (coatings, sealants, barriers, accessories) supplemented by technical services, specification support, and training including RIBA-approved CPD seminars. Products carry extensive third-party certifications (Certifire, CE, BSI ISO 9001/14001/45001) and are tested to BS EN 1366-3/4, BS476, and EN 13381 standards.

Named customers and case studies span government (HMP Five Wells prison), enterprise retail (Mall of Tripla Helsinki), residential (Nelson Amsterdam, Denby Street student housing), and hospitality (Hotel Amsterdam) projects. Brand-level financials are not separately disclosed; Nullifire operates within the Tremco CPG Europe division of its NYSE-listed parent RPM International Inc.

Name

Nullifire

Legal name

RPM International Inc.

Website

https://nullifire.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

11–50 employees

Short description

Nullifire, a UK brand within Tremco CPG Europe (RPM International Inc.), manufactures intumescent coatings and fire stopping products for passive fire protection. It serves architects, contractors, and main contractors across European construction through distributor networks and direct specification-driven sales.

Ownership category

akta.pro rank

Product category

Passive Fire Protection Products

SIC

Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851)

akta.pro primary industry

Fireproofing & Intumescent Coatings (IMAIAKAH)

akta.pro secondary industries

Firestopping & Fire-Resistant Sealants (IMADAOAI), Firestop & Penetration Sealing Materials (IMADAGAL)

Keywords

• Passive fire protection
• Intumescent coatings
• Fire stopping products
• Cavity barriers
• Structural steel protection

Headquarters

HQ city

Wigan

HQ country

United Kingdom

HQ region

Europe

Offices29 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. Passive Fire Protection Products: Nullifire generates revenue through the sale of passive fire protection products including intumescent coatings, fire stopping solutions, sealants, foams, cavity barriers, and accessories. The company sells directly to contractors and through distributor networks.
2. Technical Services and Training: The company provides technical support services, specification services, on-site support, and training workshops including RIBA Approved CPD seminars as part of their customer engagement model.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Nullifire develops and manufactures passive fire protection products for the construction industry. Its portfolio spans intumescent coatings for structural steel (up to 120 minutes fire resistance) and a complete fire stopping system for service penetrations, linear joints and cavity barriers, including sealants, foams, coated batts, cavity barriers, fire resistant ropes, intumescent straps, insulation wraps, and the FZ100 Fire Safe Zone using GXT (Graphite eXpansion) technology. Products are sold to architects, specifiers, contractors, installers and main contractors through a UK/Ireland distributor network, direct sales/specification support, and the wider Tremco CPG Europe footprint of 9 factories and 24 sales offices across 6 continents.

Product overview

Nullifire offers a comprehensive portfolio of passive fire protection products and systems for the construction industry. The company is the only manufacturer offering both intumescent coatings and fire stopping products. The product range includes cavity barriers (FJ series), fire resistant sealants (FS series including FS702, FS703, FS704, FS709), foams (FF197), coatings (FS712 Intucoat Brush), insulation wraps (FI025), fire resistant ropes (FJ203, FJ204), stone wool plates (FB750 Intubatt), and the innovative FZ100 Fire Safe Zone system using Graphite eXpandable Technology (GXT). These products work together to provide complete fire compartmentation solutions including service penetrations, linear joints, ventilated facades, and structural steel protection.

Differentiator

Problem solved

Functional benefit

Products and services

• FJ260 Cavity Barrier A close-state cavity barrier of rock mineral wool that maintains required fire resistance when following fire compartment lines in buildings. Suitable for cavities up to 600mm, tested to EN 1366-4 up to EI 120. Intended for architects, specifiers and contractors designing compartment walls and facades.
• FS704 Fire Resistant Hybrid Sealant Next-generation fire resistant hybrid sealant combining proven fire performance with durability, versatility and environmental credentials. EC1-plus certified, fast curing, free of phthalates, isocyanates and silicones, used in joints in walls and floors within fire compartments up to 50mm width. For contractors and applicators installing passive fire stopping.
• FZ100 Fire Safe Zone Revolutionary fire safe zone system using Nullifire's proprietary GXT (Graphite eXpansion Technology) that restores fire compartments for existing and future service penetrations; expands on fire to restore compartment performance where penetrations have broken it, with up to 66 dB acoustic isolation. For designers and contractors needing a complete solution around complex service penetrations.
• FB750 Intubatt Coated Batt Lightweight stone wool batt with identifiable water-based coating providing fire resistance up to 240 minutes; used to restore openings in walls and floors of fire compartments. Backed by ETA 17/0392. For fire stopping contractors on commercial, residential and institutional projects.
• FS702 Intumastic Fire Resistant Acrylic Sealant Flexible acrylic sealant for fire resistant joint sealing in walls and floors. Used for sealing FB750 stone wool batts and various penetrations including cables, cable trays and metal pipes. For installers of Nullifire fire stopping systems.
• FS703 Fire Resistant Silicone Sealant Flexible silicone sealant for expansion joints in building structures, with resistance to weather and UV; suitable for interior and exterior applications. For architects and contractors specifying fire-rated movement joints.
• FS709 HP Intumescent Sealant Graphite-based intumescent sealant that expands on exposure to fire and heat, restoring fire performance of compartment walls and floors where penetrations pass through. For contractors and installers of service penetration seals.
• FS712 Intucoat Brush Water-based acrylic coating applied in combination with FB750 stone wool batts for fire sealing of penetrations in metal stud walls, solid walls and solid floors; also used as surface repair coating. For fire stopping contractors.
• FI025 Intuflex Insulation Wrap Mineral stone wool insulation wrap covered with a foil layer providing high insulation properties; used to improve the required insulation value of penetrations in combination with FB750 and FS702. For installers of insulation and fire seals around service penetrations.
• FJ203 Fire Resistant Rope Fire resistant sealing rope of stone wool encased in flexible glass fibres, used as a fire resistant joint sealing/backing material for movement joints between various masonry parts. For installers of fire rated movement joints.
• FJ204 Fire Resistant Rope Fire resistant sealing rope of recycled stone wool encased in glass fibre, with Class A1 fire rating; suitable as fire resistant joint sealing for various building applications. For contractors and installers of fire-rated linear joint seals.
• FF197 Fire Rated PU Foam Fire rated polyurethane foam used for fire sealing of connections, joints and seams in building constructions. For installers of fire-rated linear joints and facade connections.
• FP302 Intustrap Intumescent Strap Flexible graphite-filled fire resistant strap used to fire seal all types of pipe insulation or combustible pipes. For installers of fire seals around combustible service penetrations.
• Nullifire Intumescent Coatings (Structural Protection Range / SC Range) Structural steel fire protection intumescent coatings providing up to 120 minutes of fire resistance tested to international standards (BS476, EN 13381, ASTM/UL-equivalent); range includes primers, topcoats and cementitious mortars. For specifiers, main contractors and applicators of structural steel fire protection on commercial, residential, public and industrial buildings.

Quantifiable outcome

• Up to 120 minutes fire resistance for structural steel protection
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core, major and moderate.

• Tremco CPG EuropecoreStrategic or Co-development PartnerNullifire is a brand of Tremco CPG Europe, part of RPM International Inc. Working in union with sister brands including illbruck, Flowcrete, Vandex, TREMCO, Dryvit, and Nudura to offer construction products for all stages of projects.
• UK and Ireland DistributorscoreChannel Partner/ Reseller/ DistributorNullifire works with many distributors across UK and Ireland. Distributors can be located through the distributor finder tool on the company website.
• UKAS Test HousesmajorTechnology or IntegrationProducts undergo rigorous independent third-party testing with leading UKAS-accredited test houses after initial validation assessments at in-house facilities.
• PeutzmajorTechnology or IntegrationDutch testing laboratory that conducted classification testing for Nullifire FJ204 Brandwerend Afdichtingskoord in combination with illbruck FM330 foam for HSB element connections.
• ASFPmoderateOthersActive member of Association for Specialist Fire Protection, which develops guidance on essential standards in passive fire protection.
• NBS SourcemoderateOthersPartner with NBS Source digital platform for construction product information, providing structured product data with performance criteria and certifications.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Hilti: Global construction technology company with a direct firestop systems and sealant product line (Hilti CFS series) competing head-to-head with Nullifire's firestopping range for service penetrations and linear joints in commercial construction.
• Carboline: Sister brand under Tremco CPG offering intumescent and fireproofing coatings for industrial and commercial structures — directly comparable product line, increasingly unified under Tremco CPG UK.
• Promat: Etex-owned specialist in passive fire protection including fire-resistant boards, sprays and intumescent coatings. Directly comparable as a dedicated passive fire protection specialist serving architects, specifiers and contractors across Europe.
• Specified Technologies (STI Firestop): North American specialist manufacturer of firestopping products (putty pads, collars, sealants, sleeves) for service penetrations and construction joints — closely aligned product set to Nullifire's firestopping portfolio.

Broad incumbents

• 3M: Diversified industrial conglomerate with a FireDam and firestopping product line as part of a much broader construction and safety portfolio. Competes with Nullifire on firestopping specifications but does not specialize in passive fire protection.
• Sika: Global construction chemicals leader with firestopping sealants and intumescent products within a much broader waterproofing, sealing and bonding portfolio. Comparable as a multi-line competitor; lacks Nullifire's specialist positioning.
• Fosroc: International construction chemicals supplier with firestopping sealants, coatings and intumescent products within a broader admixture, waterproofing and repair portfolio. Comparable to Nullifire's product set though not specialized in passive fire protection.
• BASF Master Builders Solutions: BASF's construction chemicals brand offering fire protection coatings and sealants within a broad concrete, waterproofing and repair portfolio. Competes with Nullifire on intumescent specifications for major projects.

Emerging players

• Rockwool: Stone wool insulation manufacturer whose fire-resistant insulation products overlap with Nullifire's stone wool-based fire stopping products (FB750 batts, FJ203/FJ204 ropes, FI025 wraps). Comparable materials basis though broader insulation focus.

Others

• Tremco (CPG Europe): Sister brand under Tremco CPG Europe offering waterproofing, flooring and in-plant glazing. Related party rather than direct competitor — shares infrastructure, distribution and customer relationships with Nullifire and is the parent corporate vehicle.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/nullifire
• Facebookfacebook.com/NullifireUK
• LinkedInlinkedin.com/company/nullifireuk

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nullifire