Rockwool FirePro AIS Intumescent Sealant 310ml

ROCKWOOL FirePro AIS is a high-specification acrylic ablative sealant designed to reinstate the fire resistance of compartment walls and floors while simultaneously providing a high-performance acoustic seal. Engineered for professional contractors, this water-based sealant serves a dual purpose: it acts as a standalone seal for linear joints up to 60mm wide and functions as the critical sealing component for the FirePro CB50/60 ablative coated batt system. By combining extensive fire testing with market-leading acoustic properties, FirePro AIS simplifies site inventory, allowing you to tackle multiple compliance requirements with a single cartridge.

The primary advantage of FirePro AIS is its verified compliance with the latest European standards. Unlike older sealants, AIS has been rigorously tested in accordance with EN 1366-3 (2021+2024) for service penetrations and EN 1366-4 (2021) for linear joints. This testing grants it an impressive fire resistance rating of up to 4 hours (EI 240) in specific applications. For tradespeople, this means total confidence when sealing around cable bundles, metallic pipes (such as copper), or rigid conduits. Whether you are working on flexible or rigid walls, or rigid floors, this sealant provides the robust fire stopping performance required to sign off on complex compartmentalisation jobs without the risk of call-backs.

Beyond fire safety, FirePro AIS addresses modern demands for indoor air quality and sustainability. It has achieved ‘Exemplary’ classification for VOC emissions under BREEAM, LEED, and WELL building standards, making it the sealant of choice for high-specification commercial and public sector projects. The formula is easy to gun and tool, and it offers Type X durability, meaning it is certified for conditions exposed to weathering—though it is primarily used internally. Note that this product is not suitable for use with cPVC piping.

Key Technical Specifications:

• Fire Resistance: Up to 4 hours (EI 240)
• Acoustic Performance: Up to 62dB (Rw)
• Test Standards: EN 1366-3, EN 1366-4, EN 13501-2
• Durability: Type X (Weathering)
• Joint Width: Suitable for linear joints up to 60mm
• Certifications: UL-EU Certificate (No. UL-EU-01364-EN), CE Marked
• VOC Compliance: BREEAM, LEED, WELL (Exemplary Level)

For penetration seals involving large voids or multiple services, this product is designed to be used in conjunction with ROCKWOOL FirePro CB50 or CB60 Ablative Coated Batts.