Intumescent Sealant – Fire Resistant – Residential & Commercial Use

Product Overview

This high-performance intumescent sealant is supplied in 310ml cartridges. It is a water-based acrylic emulsion containing graphite, designed to restore fire resistance and insulation performance in compartment walls and floors penetrated by building services. The sealant expands under heat to seal voids left by combustible materials, preventing the passage of flames, smoke, and hot gases during fire conditions.

Formulated for both combustible and non-combustible services, this sealant provides a reliable, high-expansion barrier for pipes, cables, and insulated metalwork. It reacts at approximately 135°C, rapidly increasing in volume to close openings and restore fire integrity.

Features & Benefits

• High expansion performance: Graphite-based formula expands at 135°C to close gaps and seal penetrations under fire exposure.
• Versatile use: Effective around combustible pipes, single cables, cable bundles, and metal pipes with combustible insulation.
• System compatibility: Suitable for use in both wall and floor applications across multiple substrates.
• Ease of application: Ready-to-use, supplied in 310ml cartridges for standard applicator guns.
• Fire reinstatement: Restores the integrity and insulation performance of compartment walls and floors penetrated by services.
• Material compatibility: Fully compatible with cPVC pipes and a wide range of building materials.

Applications

• Combustible pipes: Expands to close voids around plastic and composite service penetrations.
• Cables and cable bunches: Provides a flexible fire seal around grouped electrical services.
• Metal pipes with combustible insulation: Seals annular spaces to maintain compartment integrity.
• Multi-service penetrations: Suitable for use in mixed penetrations containing various pipe and cable types.

Installation Guidance

• Preparation: Ensure all surfaces are clean, dry, and free from oil, dust, or loose particles.
• Application: Apply using a standard mastic or sealant gun, ensuring full contact with surrounding materials.
• Depth control: For larger gaps, use appropriate backing material before sealing to maintain correct joint depth.
• Finishing: Smooth surface with a wet spatula or gloved finger within 10 minutes of application.
• Curing: Allow sufficient time for the sealant to cure fully for optimal performance.