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.
Size: 1 unit = 1 cartridge or foil
310ml cartridges: Usually stored in boxes of 25 units. We recommend ordering in quantities of 25, although there is no minimum order quantity and single tubes can be supplied.
600ml foils: Usually stored in boxes of 15 units. We recommend ordering in quantities of 15, although there is no minimum order quantity and single foils can be supplied.
Standards & Approvals
Standards & Approvals
Application
Application
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.
Installation
Installation
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.
Tested Details
Tested Details
Payment & Security
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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 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
-
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)
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)




