ROCKWOOL offers this purpose-built acoustic intumescent sealant designed to seal joints and service penetrations in walls, partitions, and glazing systems. This large five-litre tub is perfect for large-scale projects, and the sealant is easy to apply. Additionally, it functions as an acoustic seal in party walls and obstructs the passage of smoke.
This top-quality sealant provides exceptional fire protection for up to four hours in joints up to 30mm wide. It has also been tested in accordance with BS476: Part 20 for compliance, and it has third-party approval from the LPCB (Loss Prevention Certification Board) in terms of performance and quality.
Features & Benefits: ROCKWOOL Acoustic Intumescent Sealant Trowel Grade 5kg
- Designed to seal joints and service penetrations in walls, partitions, and glazing systems
- Large five-litre tub
- Perfect for large-scale projects
- Easy to apply
- Functions as an acoustic seal in party walls
- Obstructs the passage of smoke
- Provides exceptional fire protection for up to four hours in joints up to 30mm wide
Standards & Certification
- Compliance: Tested in accordance with BS476: Part 20
- Performance and Quality: Third-party approved by LPCB
Please note:
- For optimal results, it is recommended to follow the manufacturer’s instructions when using this product.












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