ST88 Fire-Rated Acrylic Sealant – Bulk Packs (6, 10, 15, 25)
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ST88 Fire-Rated Acrylic Sealant (FD60) – 310ml
ST88 is a high-performance, intumescent, fire-rated acrylic sealant designed to provide up to FD60 fire protection when sealing joints, gaps and service penetrations. Tested to BS 476:22 and EN 1366-3, this professional-grade sealant expands under heat to maintain fire integrity and slow the spread of flames, smoke and toxic gases.
Key Features:
- FD60 fire rating – provides up to 4 hours of fire resistance.
- Intumescent technology – expands when heated to seal and protect gaps.
- Adheres to multiple substrates including concrete, masonry, plasterboard, wood, and metal.
- Paintable once cured – ideal for finishing and decorating.
- Low shrink & flexible – suitable for most interior construction joints.
- Tested to BS 476:22 & EN 1366-3 for assured performance.
Typical Uses:
- Sealing joints in fire-rated walls and partitions.
- Protecting service penetrations such as cables, conduits & ducts.
- Perimeter sealing around fire doors and frames.
- Gap sealing in masonry, plasterboard and structural components.
- General fire-stopping applications in commercial & residential buildings.
Specifications:
- Colour: White
- Pack Size: 310ml cartridge - Available in packs of 6, 10, 12 & 25
- Application: Standard caulking gun
- Fire Rating: FD60
- Standards: BS 476:22, EN 1366-3
- Use: Interior applications
Application Tips:
Ensure surfaces are clean, dry and free from dust or grease. Cut the nozzle at an angle to the required bead size and apply directly into the joint. Smooth using a suitable tool. For fire-rated assemblies, follow all installation guidance and ensure correct joint dimensions are maintained.