Intumescent Graphite HPE (High Pressure Expansion) Sealant

Quelfire Product tested to BS EN 1366-3: 2009 at Warringtonfire

The Warringtonfire Logo displayed is the trademark of Warringtonfire registered in the United Kingdom. The Warringtonfire Logo is evidence that the products denoted as ‘Tested by Warringtonfire’ were tested to BSEN 1366-3: 2009 in England between September 22nd 2015 and January 7th 2021.


This product is CE Marked.

FBC System Compatible

FBC™ System Compatible indicates that this product has been tested, and is monitored on an ongoing basis, to assure its chemical compatibility with FlowGuard Gold®, BlazeMaster® and Corzan® piping systems and products made with TempRite® Technology. The FBC System Compatible Logo, FBC™, FlowGuard Gold®, BlazeMaster®, Corzan® and TempRite® are trademarks of Lubrizol Advanced Materials, Inc. or its affiliates.

Spears compatible

This product has been tested and evaluated by Spears® for acceptable use with Spears® CPVC Products, including FlameGuard®, LabWaste® and EverTuff®.

QuelStop HPE Sealant | QHPE

QHPE QuelStop HPE Intumescent Graphite Sealant is a high expansion intumescent acrylic based graphite sealant used to provide a fire rated linear joint or gap seal and to maintain the fire rating of walls and floors where they have been penetrated by services as part of the QuelStop Fire Batt System or direct to the substrate.

Name: QuelStop HPE Sealant


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Features & Benefits

Product Information


310ml cartridge (25 per box)

Additional data

Density: Ca. 1.23 – 1.33g/cm3

Shore Hardness A: 68

Colour: Black

Expansion Temperature: Ca. 180°C

Expansion Pressure: 7 bar

Expansion: Up to 20 times

Skin Time: 15 minutes at 25°C / 50% Relative Humidity

Cure Time: 1.7mm per 24 hrs

Shelf Life: 18 months unopened

pH: 06 – 09

Air Permeability: 600Pa – 100Pa 11.1/16.7 m3/h/m²

Acoustics: Rw(C;Ctr): 52 (-1;-6) dB

Durability: Type Z¹, intended for use in internal conditions

Packaging & Storage

QuelStop HPE Graphite Sealant is supplied in disposable cartridges, packaged in cardboard boxes and must be stored in ventilated, cool and dry conditions.

Health & Safety

QuelStop HPE Graphite Sealant should be handled and applied wearing appropriate protective clothing, including gloves, dust mask, safety glasses, to guard against dust inhalation, eye and skin irritation.

For further information, please refer to the Material Safety Data Sheet.

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Standards & Approvals

  • Fire resistance testing to BS EN 1366-3:2009
  • Fire resistance testing to BS EN 1366-4: 2006
  • Classified to EN 13501-2: 2007 + A1: 2009
  • FBC™ System Compatible (for use with Lubrizol® piping systems)
  • Spears® product compatible

Installation Information


QuelStop CE Marked HPE Graphite Sealant may be used for sealing around services such as cable, cable bundles, trays, ladders, combustible pipes, combustible insulations, either as part of a seal directly within the wall or floor substrate or as part of a QuelStop Fire Batt Seal.

QuelStop CE Marked HPE Graphite Sealant can also be used as a linear joint seal in which cases, a mineral wool or PE backing rod, can be used as a backing material to ensure the correct depth of QuelStop CE Marked HPE Graphite Sealant is applied in order to achieve the required performance.


All surfaces must be clean and free of any bond breaking contamination prior to application of the sealant.

The sealant should not be applied if the ambient temperature is below 5°C or above 40°C, as the adhesion may be impaired.

The QuelStop Intumescent HPE Graphite Sealant should be installed to the correct annulus and depth which depends on the penetrating services / material specification. The total annular space should be filled with compacted QuelStop HPE Sealant which is applied through the use of a standard sealant gun and once applied should be lightly compacted and smoothed off with a spatula to produce a professional and neat finish.

For full details on application and installation, refer to all available documentation, installation details and the Quelfire Technical team.

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Technical Product Documentation

You can download multiple documents in one go from the Product Documentation Download page

Standard Installation Detail Examples

These are only a few examples of this product being used in common applications, further detail drawings are available from the Standard Installation Details Download page

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