FS4 Fireshield AC Intumescent Sealant

FS4 Fireshield AC is a high-performance, flexible acrylic intumescent sealant designed to provide an acoustic and fire-rated barrier in interior construction applications. In the event of a fire, the intumescent fire sealant swells to help form an inert barrier against the passage of smoke and flames.

Features and benefits

FS4 Fireshield combines flexible, non-shrinking performance with rapid drying and fire-resistant properties, making it suitable for sealing a variety of interior construction joints and penetrations. Its solvent-free formulation can be overpainted after approximately one hour.

• High-performance acrylic intumescent sealant
• Provides an acoustic and fire-rated barrier
• Up to 4-hour fire rating, depending on joint design, sealant depth and substrates
• Swells when exposed to fire to help create a barrier against smoke and flames
• Permanently flexible to accommodate movement in joints
• Non-shrinking formulation
• Rapid drying
• Can be overpainted within approximately 1 hour
• Solvent-free and non-hazardous
• Suitable for interior applications
• Can help reduce the passage of sound through sealed joints

Uses

FS4 Fireshield AC is designed for sealing linear joints and suitable penetrations where both acoustic and fire performance are required. It can be used across a range of interior construction systems, including walls, floors, ceilings and partitioning.

• Sealing interior linear joints in floors and ceilings
• Sealing joints in dry lining systems
• Sealing partition walls and plasterboard
• Sealing joints around suspended ceilings
• Sealing penetrations around steel pipes
• Sealing penetrations around copper pipes passing through plasterboard
• Creating acoustic and fire-rated barriers in construction applications
• Suitable for interior applications requiring an intumescent fire sealant
• Can be overpainted with fire-resistant paint after approximately 1 hour
• Up to 4-hour fire resistance can be achieved depending on the joint design, sealant depth and substrates

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