50mm Rockwool FirePro CB50 Ablative Batt - Fire‑Stopping Compression Batt - 600mm x 1200mm

50mm Rockwool FirePro CB50 Ablative Batt – Fire‑Stopping Compression Batt - 600mm x 1200mm

50mm Rockwool FirePro CB50 Ablative Batt is a a high‑density stone wool fire‑stopping batt coated with an ablative fire‑resistant layer. It is designed for sealing linear gaps, perimeter joints, and service penetrations in fire‑rated walls and floors, helping maintain compartmentation and prevent the spread of fire, smoke, and hot gases. The CB50 Ablative Batt combines non‑combustible stone wool with a factory‑applied ablative coating that expands and protects the batt under fire exposure. It is installed by compression‑fitting into voids, providing a robust fire‑resistant seal that accommodates minor movement and irregular openings.

Suitable for new‑build, refurbishment, and remedial fire‑stopping, the CB50 forms part of the Rockwool FirePro® system, offering tested solutions for a wide range of penetrations and structural junctions. The CB50 Ablative Batt provides reliable fire‑stopping, excellent durability, and easy installation, making it a trusted solution for maintaining fire compartmentation in modern buildings. Its ablative coating and stone wool core deliver dependable protection in critical fire‑stopping applications.

• Ablative fire‑resistant coating - enhances fire performance and protects the batt during exposure.
• Non‑combustible stone wool core - Euroclass A1 for maximum safety.
• Up to 2‑hour fire resistance when installed within tested FirePro systems.
• Compression‑fit installation - ideal for irregular gaps and movement‑prone joints.
• Smoke and hot‑gas resistance - helps maintain compartmentation integrity.
• Acoustic insulation - reduces sound transmission through gaps and penetrations.
• Compatible with FirePro Sealant - for finishing edges and enhancing fire performance

• Sealing linear joints in walls and floors
• Service penetrations including pipes, cables and ducts
• Perimeter fire seals around floor slabs and façade junctions
• Compartmentation upgrades in refurbishment projects
• Irregular voids requiring a compressible fire‑resistant material

• Tested in accordance with BS EN 1366-3: 2021+A1:2024
• Classified in accordance with BS EN 13501-2: 2023
• Certified by UL-EU, Certificate No. UL-EU-01360-EN
• Tested in accordance with BS EN ISO 10140-2: 2021 (airborne sound insulation)
• Tested in accordance with ASTM E2923-14 (longevity assessment of fire-stop materials)