Intumescent Acrylic Sealant | CE Marked | Acoustic

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

The Warringtonfire Logo is used by Quelfire Limited in the United Kingdom under licence from Warringtonfire and is evidence that the products denoted as ‘Tested by Warringtonfire’ were tested to BSEN 1366-3: 2009 in England between September 22nd 2015 and June 21st 2019.


This product is CE Marked.

QuelStop Intumescent Acrylic Sealant | QSS

QSS QuelStop CE Marked Intumescent Acoustic Acrylic Sealant is a water-based intumescent acrylic 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.

Name: QuelStop Acrylic Sealant


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Features & Benefits

  • Up to 4 hour fire rating (EI240)
  • Suitable for use in flexible walls, rigid walls and floors
  • Suitable for linear joints up to 50mm wide
  • Suitable for use around cables, cable bunches, cable trays, cable ladders and non-combustible pipes
  • Suitable for low movement joints and remains flexible
  • Shelf life: 18 months

Product Information


  • 310ml cartridge (25 per box)
  • 600ml foil pack (15 per box)
  • 5kg tubs


Available as standard in white. Other colours are available subject to M.O.Q.

Sample Specification

Install QSS QuelStop CE Marked Intumescent Acrylic Sealant to provide up to 4 hours fire protection in joints up to 50mm in all fire walls and floors. Installation to be in accordance with manufacturer’s instructions.


QSS QuelStop CE Marked Intumescent Acrylic Sealant is expected to last the lifetime of the building.

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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
  • CE Marked
  • ETA: 17/0788 & ETA: 17/0789
  • Acoustic tested to EN 10140 to 48dB
  • Air Permeability testing to EN 1026 to 600Pa – 100Pa 0.0/0.0m3/h/m2
  • VOC Tested – ASTM D2369-10, LEED 2009-EQ041 SCAQMD

Installation Information

All surfaces must be clean and free of any bond breaking contamination prior to application of the intumescent acoustic 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 CE Marked Intumescent Acrylic Acoustic Sealant is applied in order to achieve the required performance.

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

The sealant is fast curing, approximately 15 – 60 minute tack free time, depending on the temperature and humidity. When fully cured, the sealant can be overpainted if required.

Used for sealing QuelStop Fire Batts.

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QuelStop CE Marked Intumescent Acoustic Acrylic Sealant - Technical Documentation

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