Intumescent Sealant - White
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Product Information
Full details
This 310ml tube of white Exitex Intumescent Sealant is for professionals and DIYers needing to fire-rate linear gap seals and penetrations in walls and floors. Its key benefit is providing superior fire and acoustic resistance, achieving 55 DB RW. A caveat is that it is specifically designed for these applications and may not be suitable for all sealing tasks.
All features
| Colour | White |
|---|---|
| Brand | Exitex |
Extended Product Information
FAQs
What is intumescent sealant used for?
Intumescent sealant is used to fire-stop gaps and penetrations in walls and floors. It expands when heated, sealing the gap to prevent the passage of fire and smoke.
What is the fire rating of this sealant?
This sealant has been fire tested to BS 476: Part 20 & 22.
What is the acoustic performance rating?
It achieves a sound reduction rating of 55 DB RW.
Can this sealant be painted over?
The product data does not specify if this sealant is paintable. It is recommended to consult the manufacturer's technical data sheet for this information.
How do I apply the sealant?
Cut the nozzle to the desired bead size and apply using a standard sealant gun. Ensure the gap is fully filled. Smooth the bead immediately after application if needed.
What is the size of the tube?
The sealant is supplied in a 310ml tube.
Is this sealant suitable for external use?
The product description focuses on internal fire and acoustic sealing. It is best suited for interior applications. Consult the manufacturer's specifications for external use suitability.
Troubleshooting
Sealant is not adhering well
Ensure surfaces are clean, dry, and free from dust, grease, or loose material. Prime porous surfaces if recommended by the manufacturer for specific applications.
Sealant is difficult to extrude from the tube
Check that the nozzle is cut correctly and not blocked. Ensure you are using a suitable sealant gun with adequate power.
Surface finish is uneven
Use a wet tool or finger to smooth the bead immediately after application. For a cleaner finish, mask the edges of the joint before applying the sealant.
Pros and Cons
Pros
- Provides excellent fire resistance tested to BS 476 standards.
- Offers significant acoustic insulation (55 DB RW).
- Suitable for sealing critical gaps and penetrations.
- Easy to apply with standard tools.
- Clean white color blends well in many environments.
Cons
- Limited to linear gaps and small penetrations; not for large voids.
- Specific fire and acoustic ratings may not be required for all projects.
- Requires a standard sealant gun for application.
- Color may not match all decorative schemes if not intended for finishing.
Setup, Compatibility & Care
Setup:
- Ensure the application area is clean, dry, and free from dust, grease, and debris. For best adhesion, surfaces should be sound.
- Cut the nozzle tip to achieve the desired bead size. If using a standard sealant gun, ensure it is compatible with 310ml cartridges.
- Apply a continuous bead of sealant, ensuring it fully fills the gap.
Compatibility:
- This sealant is designed for use in joints and penetrations within masonry, concrete, plasterboard, and other common building materials where fire rating is required.
- It is compatible with most common building substrates but always test on a small, inconspicuous area if unsure.
Care:
- While curing, protect the sealant from excessive moisture and extreme temperatures.
- Once cured, the sealant is durable. Clean any accidental spillage with a damp cloth before it hardens. For hardened excess, mechanical removal may be necessary.