Astroflame Intumescent Acoustic Mastic

Astroflame intumescent acoustic mastic is ideally suited for sealing and maintaining a structures fire and acoustic integrity when penetrating with pipes and cables. Astroflame intumescent mastic is designed for sealing gaps around fire doors, sealing joints and irregular holes.

• 240 minute fire rated mastic sealant
• Independently tested to BS 476-20 & EN 1366-4
• Acoustic tests to BS EN ISO 140-3
• Available in three colours
• Suitable for sealing:
• Gaps around fire doors
• Gaps around window frames
• Gaps around cable and pipe penetrations
• Gaps in low movement joints up to 25mm wide
• Supplied in 310ml tubes
• For internal use only