Rockwool FirePro CB50 Ablative Coated Batt 1200 x 600 x 50mm

The Rockwool FirePro CB50 Coated Batt is a high-density stone wool board specifically engineered to seal service penetrations and blank voids in compartment walls and floors, restoring the fire rating of the structure. Designed for professional fire stoppers and dryliners, this ablative coated batt is the industry-standard solution for sealing large apertures around cables, pipes, and ducting in both residential and commercial projects.

Universal Substrate Compatibility
On complex sites, switching between products for different wall types slows down progress. The FirePro CB50 is tested and certified for use in both flexible stud partitions (from 75mm thickness) and rigid masonry or concrete walls and floors. Whether you are face-fixing (pattress fit) over an opening or friction fitting inside a void, this board provides a reliable, compliant seal. This versatility allows you to simplify your material ordering and ensures you have the right product to hand, regardless of the substrate you encounter.

Comprehensive Service Integration
Securing sign-off on penetration seals requires robust test data. The CB50 is tested to EN 1366-3: 2021+A1:2024 with a vast array of common construction services, including steel and copper pipes, cable ladders, trays, and combustible pipes (PVC, PE, PP) when used with the correct collars or wraps. The ablative coating creates a durable smoke and fire barrier, while the high-density core (160kg/m³) effectively blocks noise transfer (up to 57 dB), protecting your reputation against acoustic failure and fire compliance issues simultaneously.

Technical Specifications

• Dimensions: 1200mm x 600mm x 50mm
• Density: 160kg/m³
• Fire Resistance: Up to EI 120 (2 hours) depending on configuration
• Fire Classification: EN 13501-2: 2023
• Acoustic Performance: Up to 57 dB (Rw)
• Test Standard: EN 1366-3: 2021+A1:2024
• Coating: Water-based ablative coating

Required Products
To achieve the certified fire rating and smoke seal, this product must be installed in conjunction with Rockwool FirePro AIS (Acoustic Intumescent Sealant) applied to all cut edges and perimeter joints. Depending on the service penetration type, additional products such as FirePro Pipe Collars or FirePro Intumescent Pipe Wraps may be required.