Meet FireMastic-HPE: High pressure fire protection for modern service penetrations
FireMastic-HPE™ is a premium graphite-based intumescent sealant engineered for reinstating fire resistance in walls, floors and ceilings where services pass through.
When exposed to heat, it expands up to 40 times its volume, exerting pressure around the penetration to close gaps left by melting plastics and combustibles. The result is a dense, stable char that maintains both integrity and insulation during a fire for up to 4hrs.
FireMastic-HPE™ is designed for the real-world conditions installers face every day: tight gaps, mixed trades, unpredictable penetrations and endless versatility. It is one of the most versatile fire sealants available due to its extensive testing on different services and substrates.
Why FireMastic-HPE Stands Out
- High pressure intumescent performance — FireMastic-HPE™ does more than expand. It actively pushes against the surrounding substrates, closing gaps and sealing around melting plastics or irregular shapes.
- Approved across a wide range of services — It is tested for plumbing, electrical and HVAC installations, including combustible and non-combustible services.
- Strong fire resistance — With fire ratings up to FRL -/240/240 (depending on system), HPE delivers long duration performance for demanding applications.
- Designed for versatility — Offering one way installation methods, and variable annular gaps the product offers versatility to suit real world site conditions.
- Environmentally friendly — Low VOC formulation, non-hazardous ingredients, testing methods, and cartridges made from recycled materials, FireMastic-HPE™ is an eco-friendly for specifiers and installers.
- Bundled services — FireMastic-HPE™ carries extensive testing on bundled services for HVAC & Electrical sectors including lagged copper pipes, a/c paircoil bundles and larger cable bundles.
Key advantages
FireMastic-HPE™ is ideal for:
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Plastic pipe penetrations (uPVC, DWV, cPVC, PEX, PEX-AL, PP-R, Kelox, ABS, PE etc.)
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Insulated copper pipes with different lagging types for up to 150mm dia
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A/C paircoil bundles
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Power, data, comms and fire alarm cable bundles
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Tested systems for apartment entries, risers and shafts
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Large pipes, cable bundles and large copper pipes with varying types of insulation / lagging.
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New builds and retrofit upgrades needing reliable reinstatement
Its high pressure exerting performance makes it the go-to sealant for penetrations with complex or combustible services.
How to Install FireMastic-HPE
- Prepare the opening and ensure surfaces are clean and dry.
- Apply FireMastic-HPE™ to the required depth and surface fillet in accordance with the tested system.
- Tool the sealant to ensure full contact with the substrate.
- Allow the material to cure as per installation requirements.
- Once cured, the sealant can be painted if required.
It is available in 310 ml cartridges and 600 ml foil sausages in charcoal grey.
FAQ
Q: What makes FireMastic-HPE different from standard sealants?
A: It expands up to 40x it’s size under fire conditions and exerts high pressure to melting combustibles, allowing it to seal around large voids and gaps left by deteriorating or melting services.
Q: Can it be used on plastic pipes?
A: Yes. It is carries extensive testing on a wide range of plastic pipes including uPVC DWV, PVC, PEX, PEX -AL, HDPE, PP, PE, ABS and cPVC. Always check the appropriate test or assessment report before specification or installation.
Q: Is FireMastic-HPE suitable for cables?
A: Yes. FireMastic-HPE™ has an extensive list of tested cables and cables bundles including orange circular mains and sub mains cables, TPS cables, CAT6, COAX, Fire Alarm, Security, NBN and other data and comms cables.
Q: Can it be used in walls and floors?
A: Yes. FireMastic-HPE™ is approved for both vertical and horizontal fire-rated penetrations.
Q: Can you paint over it?
A: Yes. The cured material can be painted to match surrounding finishes.
Q: Does it have a low VOC formula?
A: Yes. Refer to the attached VOC certificate on our resources page.
Ready to Specify FireMastic-HPE?
If you need a high pressure, high performance intumescent fire rated sealant that handles complex penetrations and mixed services, FireMastic-HPE™ is an excellent choice for both new builds and retrofit projects.
The BOSS Fire team can help with:
- System selection
- Installation guidance
- Project specifications
- Technical advice
Want to Know More?
BOSS Fire can provide full technical guidance, installation details and project support. Get in touch if you would like help selecting the right fire stopping system for your build.
