FlexiCoat-MAK™
FlexiCoat-MAK™ is a fire-resistant, water-based elastomeric acrylic coating designed for use with BOSS FlexiBatt™ to create a highly flexible fire-rated system. Once applied, it prevents the passage of fire, smoke, sound and hot gases between fire-rated compartments and can achieve up to FRL -/240/180, depending on configuration. Featuring excellent air permeability resistance (tested to 600Pa), FlexiCoat-MAK™ is suitable for linear gap seals up to 200mm wide, and apertures 1100mm x 1100mm, providing secure compartmentalisation for a wide range of building environments.
As a high-movement, flexible coating, FlexiCoat-MAK™ offers up to 50% movement capability, making it ideal for dynamic installations where building or service movement is expected due to seismic conditions. It is designed for trowel, brush or pour application, delivering a durable, seamless seal compatible with cables, metallic and non-metallic services, trays and ladders. The coating is low-VOC, halogen-free, asbestos-free and unaffected by oil or fungus, ensuring a safe, clean and long-lasting solution for internal fire protection.
Applications
- Linear gap seals up to 200mm wide
- Large aperture seals
- Cable & cable tray penetrations
- Appendix D cable configurations
- Steel & copper pipe penetrations
- Insulated Steel & copper pipe penetrations
- Suitable for walls and floors requiring movement capability
Key Benefits
- Provides up to FRL -/240/180
- Highly flexible with movement capability when used with FlexiCoat-MAK
- Low-cost and efficient method of firestopping
- Suitable for large openings in walls and floors
- Easily retrofitted around existing services
- Suitable for use with plumbing, electrical and HVAC systems
- Long lifespan and easy onsite storage
Testing
FlexiBatt™ and FlexiCoat-MAK have extensive fire-test approvals including AS1530.4:2014 and AS4072.1-2005, delivering fire resistance ratings up to FRL -/240/180.
The system is also tested to Branz FAR4572 for performance up to FRL -/240/120 in flexible configurations and is designed to maintain performance under thermal and mechanical movement conditions. Testing supports use across linear seals, cavity barriers and service penetrations in accordance with National Construction Code requirements.
