Socket Box Inserts
Advanced open-state cavity fire barriers engineered to maintain ventilation during normal conditions and rapidly seal cavity gaps during fire exposure.
Product Overview
The fire-resistant material fully lines the socket to provide a fire seal that limits the spread of fire within and through the partition. The acoustic socket box inserts are pre-formed and can be installed in seconds without assembly or adhesives. The profiled design ensures that the insert can be simply push-fitted into the electrical metal or plastic back boxes. The flanged design also ensures that the socket box insert remains in position during a fire even when fitted within plastic drylining boxes.
In addition, the insulative nature of the product and gasket sealing design also ensures the acoustic performance of the wall can be maintained and air leakage through the socket can be minimised. Offering significant labour and cost savings over plasterboard lining or putty pad solutions, the fire and acoustic Socket Box Inserts are available to suit both single and double sockets.
Why Ventilated Cavity Fire Protection Is Important?
Ventilated façade systems typically include cavity spaces behind external cladding to improve thermal efficiency and moisture management. While these open cavities are essential for building performance, they can also create hidden pathways that allow fire to spread rapidly throughout the structure.
The FF102/50 helps reduce this risk by automatically sealing the cavity during fire exposure while preserving the required airflow and drainage performance under normal conditions.
Product Features & Performance
The FF102/50 is designed to deliver reliable passive fire protection performance without affecting the functionality of ventilated façade systems.
• Open-state cavity barrier design
• Rapid intumescent expansion during fire
• Lightweight and simple installation
• Aluminum foil facing for improved handling
• Independently tested and certified system
• Allows continuous airflow and drainage
• Suitable for cavity gaps up to 50mm
• No ongoing maintenance required
• Fire resistance performance up to 120 minutes
Applications
The FF102/50 is suitable for a wide range of façade and external wall constructions where ventilated cavities are required.
Recommended Applications:
- Recommended Applications:
- Commercial developments
- Healthcare facilities
- Industrial and infrastructure projects
- Ventilated façade assemblies
- Residential towers
- Educational buildings
The system can be installed horizontally or vertically depending on project requirements and wall construction details.
Technical Information
Testing & Certification
The FF102/50 has been extensively tested to meet recognized international fire safety standards and façade fire protection requirements.
Certifications & Standards:
- IFC Certified
- Assessed to ASFP guidance
- Suitable for tested façade assemblies and fire-rated systems
- CCPI Assessed
- Tested in accordance with BS EN standards
— Installation & System Compatibility
The product is designed for practical and efficient installation across multiple façade and wall construction types.
Compatible with:
• Concrete structures
• Steel frame systems
• External cladding assemblies
• Masonry walls
• Timber frame constructions
• Ventilated cavity systems
Its lightweight profile and flexible installation options help simplify on-site application while maintaining reliable fire protection performance.

