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Fire Stopping
Fire stopping products seal gaps in walls, ceilings and around pipework to block flames, smoke and heat. Items like batts, curtains and collars slow fire spread and support emergency response. Used alongside fire retardant paints or intumescent paint, they protect service penetrations in fire-rated walls and floors. Common in commercial and industrial settings, they must be installed to certified standards.
Subcategories
- Door Seals and Hardware
- Fire Barriers
- Fire Batts
- Fire Rated Cavity Barriers
- Fire Rated Compounds
- Fire Rated Mortars
- Fire Rated Putty
- Fire Resistant Boards
- Fire Resistant Shuttering and Slabs
- Fire Stopping Accessories
- Fire Stopping Adhesives
- Fire Stopping Coatings
- Fire Stopping Foams
- Fire Stopping Sealants
- Intumescent Fire Pillows
- Intumescent Fire Sleeves
- Intumescent Joint and Gap Seals
- Intumescent Pipe Collars
- Intumescent Pipe Wraps
Astroflame Intumescent Acoustic Mastic
One-part intumescent acrylic mastic for sealing gaps around fire doors, window frames and for sealing joints, voids and irregular holes in fire rated structures. Forms a char, preventing the passage of fire and smoke, when exposed to the heat of a fire. Tested around: metallic pipes, cable trays, cable bunches, small, medium & large...
Astroflame Fire Rated Putty Pads & Cords
Easy to apply fire and sound rated sealant supplied as a non-setting putty. The putty is hand workable, reusable and re-serviceable due to its non-setting properties. The putty is manufactured and supplied in different shapes and forms for different applications - sockets, fire sealing services and water supply boxes. CE marked certified...
Astroflame X-Series Intumescent Fire Pillows
Designed to provide an effective fire barrier, on a temporary or permanent basis, for services which are subject to frequent changes or replacement. Pillows can be added, removed or rearranged in an aperture to accommodate to the needs of the situation and have been tested with metallic pipes, cables, cable bunches, cable trays and cable...
Nullifire FS702 Intumastic Fire Resistant Acrylic Sealant
Water-based acrylic sealant which cures to give a firm but flexible fire seal. Suited for use around non-combustible services, cables, rock fibre insulated non-combustible pipes, using a minimum depth of 25 mm. FS702 has excellent adhesive qualities and can also be used for the bonding and pointing of joints and service penetrations in...
Astroflame Intumescent PFP FR Acrylic Sealant
Designed to prevent the spread of fire and smoke through joints and openings in fire rated walls and floors (including openings formed around building service penetrations); also maintains the acoustic design performance. Suitable for most surfaces, included concrete, masonry, steel, gypsum, glass, plastics and most non-porous surfaces...
Astroflame Fire Resistant Batt Coating Trowel Grade
1 part intumescent acrylic mastic - only compatible for use with Astroflame Fire Resistant Batts and cannot be used with any other Fire Batts - for sealing gaps around fire doors, linear joints, penetration seals, voids and irregular holes in fire rated structures. The sealant forms a char, preventing the passage of fire and smoke, when...
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Fire Stopping Products for Service Penetrations & Compartment Protection – Tested & Certified Systems
Fire stopping systems provide essential protection for modern buildings by sealing openings and joints where fire and smoke could travel unchecked. Even small gaps around cables, pipes, or ductwork can create serious risks if left unprotected. Products like coated batts and intumescent collars fill these voids and help maintain the integrity of fire-rated compartments.
Fire stopping is not just about materials - it’s about compliance and performance under pressure. Leading systems from Nullifire and Astroflame include flexible fire curtains, mineral fibre boards, and expanding collars for plastic pipework. Products like Nullifire’s FB747 Coated Batt, for instance, deliver up to four hours’ fire resistance and are widely used in educational, commercial and healthcare environments.
Where thermal expansion or building movement is expected, consideration must be given to a fire stop’s load-bearing and mechanical performance. Improper installation risks nullifying the fire rating of a room, which can lead to structural collapse or hazardous smoke spread. Each product must be chosen based on substrate type, penetration size and its surrounding environment. While coatings and sprays offer surface protection, a properly installed fire stop system adds a layer of depth to fire safety. Complementary solutions include fire resistant boards for wall penetrations and fire rated putty pads for socket boxes - both designed to limit fire spread at weak points in construction. Contact Rawlins Paints for guidance on selecting and installing the right fire stopping components for your project.
Fire Stopping FAQs
What certifications should fire stopping products carry for use in buildings?
Fire stopping products should have evidence from recognised fire tests such as BS 476 or EN 1366 series, along with assessments or third-party certifications. Certification from an accredited body like UKAS strengthens credibility and confirms regular manufacturing audits. Building control and insurers often require these for installation approval in regulated environments.
Can fire stopping systems be used in different types of wall construction?
No single fire stop product suits all wall types. A solution tested in solid masonry may not work in drywall or cladding. Always ensure the fire stop has been assessed for the specific wall construction in use. Relying on incorrect assumptions about performance across substrates risks non-compliance and fire failure.
Why is correct installation of fire stopping so important?
Even a fully certified product can fail if installed incorrectly. Gaps, voids, or the use of incompatible materials can allow smoke or flame to spread, undermining the fire compartment. Installers must follow manufacturer instructions exactly and understand the service penetrations involved. Periodic inspection should also confirm systems remain intact.
Are fire stopping products suitable for buildings under refurbishment?
Yes, but suitability depends on the original construction and any changes during the refurbishment. Existing services may require fire stops to be retrofitted using compatible collars, wraps, or mortars. Installers must confirm that older structures meet current standards and ensure products are assessed for use in refurbishment applications.
Can different fire stopping systems be combined on the same penetration?
Mixing fire stopping systems on a single service penetration is not recommended. Products behave differently under fire conditions and may fail at interfaces. Manufacturers do not test every possible combination, so untested pairings can void certification. For continuous protection, use a complete system from a single source or seek technical advice.