Intumescent Graphite HPE (High Pressure Expansion) Sealant

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.

Features & Benefits

Name: QuelStop HPE Sealant


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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

Sample Specification

Install QuelStop HPE Intumescent Graphite Sealant to provide up to 4 hours fire protection to penetration services through wall and floors. Installation to be in accordance with manufacturer’s instructions.


QuelStop HPE Intumescent Graphite Sealant is expected to last the lifetime of the building.

Technical Support & Guidance

Should you require any further information regarding this product, please don’t hesitate to contact one of our specialists.


  • 310ml cartridge (25 per box)

Application / installation

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

Mineral Wool (min 80kg/m3) or PE backing rod, where required, can be used as a backing material to ensure the correct depth of QuelStop HPE Intumescent Graphite Sealant is applied in order to achieve the required performance.

The high pressure 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 HPE Intumescent Graphite Sealant should be installed to the correct annulus and depth depending on the penetrating services / material specifi cation. The total annular space should be fi lled with compacted QuelStop HPE Intumescent Graphite Sealant.

Once compacted, smooth off the QuelStop HPE Intumescent Graphite Sealant to produce a professional and neat finish.

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