QuelStop Intumescent Acoustic Acrylic Sealant | QSS
Description
Description
QSS QuelStop Intumescent Acoustic Acrylic Sealant is a water-based intumescent acrylic mastic 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.
On exposure to fire, it expands to reinstate the integrity of the compartment, preventing the spread of fire for the amount of time it has been proven to during testing.
Standards & Approvals
Standards & Approvals
QuelStop Intumescent Acrylic Sealant is a fundamental part of the QuelStop Fire Batt System and should be applied to all cuts, joints and exposed edges of the batt and can also be used for sealing around services such as cable, cable bundles, trays, ladders and non-combustible pipes, either as part of a seal directly within the wall substrate or as part of a QuelStop Fire Batt Seal.
QuelStop Intumescent Acrylic Sealant can also be used as a linear joint seal in a range of applications between concrete and concrete, steel or softwood and also to a gypsum board headtrack and around wooden fire door frames.
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 35°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.
In linear joint applications, mineral wool or PE backing rod, can be used as a backing material to ensure the correct depth of QuelStop Intumescent Acrylic Sealant is applied in order to achieve the required performance.
For full details on application and installation, refer to all available documentation, installation details and the Quelfire Technical team.
Click here to view the Installation Instructions PDF for QSS Acrylic Sealant.
*Please note that custom made items can expect to have longer lead times. Next working day is typical but can depend on outside factors not controlled by Quelfire.
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CE Mark
CE marking logo shows that a product meets the health, safety, and environmental requirements of the European Economic Area (EEA) and can be freely traded within the EEA market. CE marking is a voluntary requirement for passive protection penetration seals.
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BS EN 1366-3 tested
The Warringtonfire logo is evidence that this product was BS EN 1366-3 fire resistance tested at a Warringtonfire accredited test laboratory.
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Product Certification
The UL-EU logo is evidence that this product has been certified including classification to EN 13501-2 by the UL Solutions accreditation body.
Product Info & Features
Product Information
| Property | Specification |
|---|---|
| Slump | 5mm after 1 hour in 30mm joints |
| Shrinkage | Approximately 12% |
| Cure Rate | 3mm per day at 50% relative 23°C |
| Specific Gravity | 1.56 – 1.66 g/cm³ |
| Application Temperature | +5°C to +35°C |
| Tack Free Time | 30 minutes at 23°C and 50% relative humidity |
| VOC % (Nonaqueous volatiles at 105°C) | 3.6% |
| Acoustic Rating | Up to Rw (C;Ctr) : 63 (-2;-7) dB |
| Packaging & Storage | Supplied in disposable cartridges or foils, packaged in cardboard boxes. Store in ventilated, cool, and dry conditions. Recommended storage and application temperature: +5°C to +35°C. |
| Health & Safety | Wear appropriate protective clothing, including gloves, dust mask, and safety glasses to prevent dust inhalation, eye, and skin irritation. |
Features & Benefits
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Used as a fundamental part of the QuelStop Fire Batt system
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Suitable for use around cables, cable bunches, cable trays, cable ladders and non-combustible pipes
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Suitable for use in flexible walls, rigid walls and floors
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Suitable for linear joints up to 50mm wide in concrete to concrete/steel/softwood
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Suitable for linear joints up to 20mm wide with gypsum board/steel headtrack
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Suitable for low movement joints and remains flexible – maximum movement capability is ≤7.5%
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Suitable for use around wooden fire door frames
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Up to 4 hour fi re rating (EI240)
Product Information
| Property | Specification |
|---|---|
| Slump | 5mm after 1 hour in 30mm joints |
| Shrinkage | Approximately 12% |
| Cure Rate | 3mm per day at 50% relative 23°C |
| Specific Gravity | 1.56 – 1.66 g/cm³ |
| Application Temperature | +5°C to +35°C |
| Tack Free Time | 30 minutes at 23°C and 50% relative humidity |
| VOC % (Nonaqueous volatiles at 105°C) | 3.6% |
| Acoustic Rating | Up to Rw (C;Ctr) : 63 (-2;-7) dB |
| Packaging & Storage | Supplied in disposable cartridges or foils, packaged in cardboard boxes. Store in ventilated, cool, and dry conditions. Recommended storage and application temperature: +5°C to +35°C. |
| Health & Safety | Wear appropriate protective clothing, including gloves, dust mask, and safety glasses to prevent dust inhalation, eye, and skin irritation. |
Features & Benefits
-
Used as a fundamental part of the QuelStop Fire Batt system
-
Suitable for use around cables, cable bunches, cable trays, cable ladders and non-combustible pipes
-
Suitable for use in flexible walls, rigid walls and floors
-
Suitable for linear joints up to 50mm wide in concrete to concrete/steel/softwood
-
Suitable for linear joints up to 20mm wide with gypsum board/steel headtrack
-
Suitable for low movement joints and remains flexible – maximum movement capability is ≤7.5%
-
Suitable for use around wooden fire door frames
-
Up to 4 hour fi re rating (EI240)
Specification Details
| Joint Size (mm) | Depth of Sealant (mm) | Yield per 310ml Cartridge (m) |
|---|---|---|
| 10 | 10 | 3.10 |
| 20 | 15 | 1.03 |
| 30 | 20 | 0.51 |
| Joint Size (mm) | Depth of Sealant (mm) | Yield per 310ml Cartridge (m) |
|---|---|---|
| 10 | 10 | 3.10 |
| 20 | 15 | 1.03 |
| 30 | 20 | 0.51 |
Product Documentation
| File | |
|---|---|
| Product Data Sheet | Download |
| Installation Instructions | Download |
| Declaration of Performance | Download |
| Material Safety Data Sheet (COSHH) - GB | Download |
| Material Safety Data Sheet (COSHH) - NI | Download |
| Material Safety Data Sheet (COSHH) - EU | Download |
| Certificate of Constancy of Performance (Service Penetrations) | Download |
| Certificate of Constancy of Performance (Linear Joints) | Download |
| VOC Content Test Report | Download |
| VOC Emission Test Report (Indoor Air Comfort GOLD) | Download |
Standard Installation Detail Examples
| File | |
|---|---|
| QSS-CF150-01 | Cable Penetrating a Rigid Floor | View |
| QSS-FW100-00 | Blank Seal for a Flexible or Rigid Wall | View |
| QSS-FW100-02 | Metal Pipe Penetrating a Flexible or Rigid Wall | View |
| QSS-FW100-LJ-01 | Linear Joint Between a Flexible or Rigid Wall and a Wooden Door Frame | View |
| QSS-LJ-T-04b | Horizontal Linear Joint - Concrete to Timber | View |
Browse More Tested Details
We have listed just five examples of tested details using QSS Acrylic Sealant, though there are more available. In total, our standard installation details library contains over 600 tested details across our full product range.
Videos
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Firestopping Product Spotlight: QuelStop Acrylic Sealant
As Glenn Hutchins (Business Development Manager, North) and Alec Purdie (Technical Manager) explain in this short video, the QuelStop Acrylic Sealant is a versatile product which is great to have onsite.
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Firestopping Tested Detail: Steel Profile Deck Using QuelStop Fire Batt & Acrylic Sealant
In this short video, Alec Purdie (Technical Manager) explains how QuelStop Ablative Coated Mineral Wool Fire Batt can be used in conjunction with QuelStop Intumescent Acrylic Sealant to firestop a steel profile deck head of wall.
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Firestopping Tested Details: Fire Doors
In this video, Alec Purdie (Technical Manager) talks through some of the applications we have tested for fire doors, while answering frequently asked questions about test standards, specific scenarios, and backing materials.
Frequently Asked Questions
What is QSS QuelStop Intumescent Acoustic Acrylic Sealant?
What is QSS QuelStop Intumescent Acoustic Acrylic Sealant?
It’s a water-based acrylic sealant designed to provide fire-rated and acoustic seals for joints, gaps, and service penetrations in fire-rated walls and floors.
How does it stop the spread of fire?
How does it stop the spread of fire?
When exposed to fire, the intumescent sealant chars and seals the service penetration to maintain the fire integrity and insulation of the wall or floor, helping to contain fire to the compartment of origin.
How is it applied?
How is it applied?
It’s supplied in 310ml cartridges or 600ml foils. Both of which can be applied using a mastic gun. The sealant should be applied to clean, dust-free surfaces, with tooling off as needed for a neat finish.
How is it supplied and packaged?
How is it supplied and packaged?
The sealant is available in 310ml cartridges, supplied in boxes of 25.
We recommend ordering in full box quantities for convenience, though single cartridges can also be provided if required.
QSS is also available in 600ml foils, with 15 foils per box.
