Hilti FS-ONE MAX Intumescent Firestop Sealant – 10.1 oz Cartridge

Buy 12+ and save 15% automatically at checkout — no coupon code required. Hilti FS-ONE MAX is a high-performance intumescent firestop sealant designed to help protect common through-penetrations in fire-rated wall and floor assemblies. It expands when exposed to fire and can be used with a wide range of combustible and non-combustible penetrations. Designed for use with concrete, masonry and drywall, FS-ONE MAX provides contractors with a versatile firestopping solution for pipe, cable and mixed penetrations. Always select and install firestop materials according to the applicable tested and approved firestop system. Common Applications Copper, steel and EMT pipe penetrations Insulated steel and copper pipe penetrations Closed or vented plastic pipe penetrations Single cables and cable bundles Cable trays Mixed and multiple penetrations Concrete, masonry and drywall assemblies Key Features Intumescent firestop sealant — expands when exposed to fire Up to 4-hour fire rating in applicable tested systems Water-based and paintable Red color Mold and mildew resistant Chemical resistant FBC compatible LEED v4 compliant Made in the USA / Buy American compliant Technical Specifications Product: Hilti FS-ONE MAX Type: Intumescent firestop sealant Chemical basis: Water-based acrylic dispersion Color: Red Application temperature: 35°F–104°F* Temperature resistance: -4°F–212°F Tack-free time: Approximately 20 minutes at specified reference conditions Shelf life: 18 months Expansion ratio: Up to 1:5 unrestricted Paintable: Yes LEED VOC input: 9 g/L Test standards include: UL 1479, ASTM E814, ASTM E84 and CAN/ULC-S115 *Hilti provides additional requirements for applications below 35°F; consult the current technical documentation and applicable listed system before installation. Important Firestop Installation Information Firestop performance depends on the complete tested system, including the assembly, penetration type, annular space, backing material, sealant depth and other installation requirements. Consult Hilti's current technical literature and the applicable UL-listed or approved firestop system for the specific penetration before installation. Download (PDF) Product Data Sheet Download (PDF) Instruction for Use