Intumescent Acoustic Sealant

Vitcas Intumescent Acoustic Sealant Mastic is a halogen-free acrylic sealant that provides up to a 4-hour fire barrier while also delivering excellent sound damping performance. It is ideal for sealing uneven gaps around pipework, door frames, window sills, and for sealing fire protection boards and partitions where a fire rating is required. Not suitable for permanent water immersion.

Key Characteristics:

• 4-hour fire rating
• Complies with BS EN 1366 Part 4 (fire protection)
• Complies with BS EN ISO 140-3:1995 (acoustic insulation)
• Excellent sound damping properties
• Halogen-free formulation

Typical Uses:

• Fire barrier and sound damping in door frames, window sills, and around pipework
• Sealing joints in fire protection boards and partition systems