Cromar Alpha Chem Acoustic Intumescent Sealant is a high quality, one part, flexible 5 hour fire rated sealant used to maintain fire performance in walls, floors and penetration seals. It can also be used to form linear gap seals where gaps are present within the wall and floor construction and linear joints, where wall and floor constructions abutt. The Alpha Chem Sealant also has intumescent properties that cause it to swell upon heating. It also has excellent sound reduction properties and upholds air tightness of buildings.

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• Features & Benefits
• Certifications
• Limitations

Features & Benefits

• Mechanical Adhesion, Tensile testing & Shore Hardness to ISO 9046:2005, ISO 8339:2005 & ISO 7619-1:2011
• Fire resistance tested in flexible walls, rigid walls and floors
• Tested in Linear Joints up to 50mm wide
• Tested in large service openings up to 490 x 150mm
• Tested with Metallic Pipes, Cables, Cable Bunches, Cable Trays and Cable Ladders
• Causes no known effects to plastic pipes, plastic cables, sheathing or metallic components
• For use in low movement joints, remains flexible
• Halogen free, resists fungi and vermin
• Tack free within 30 minutes, curing 2mm per 24 hours dependent on conditions

Ideal For:

• Sealing and filling openings and joints to maintain fire resistance of walls, floor and structures
• Sealing low movement construction joints and service penetrations
• Reducing acoustic transfer between building compartments
• Maintaining the air tightness of building compartments
• Internal use only in gaps up to 50mm, application temperature up to +40°C

Certifications

• Tested in accordance with EN1366-4: 2009 Fire Resistance
• Tested in accordance with EN1366 -3:2009 Fire Resistance
• Classification to EN13501-2
• ULEU & ULUS Listed
• Tested in accordance with BS476 pt 20&22 Fire Resistance
• Tested in accordance with EN1026 Air Tightness
• Tested in accordance with EN10140-2 Sound Reduction
• CE Marked

Limitations

• It is the user’s responsibility to ensure suitability for use
• Please read the label before use as this contains essential safety information

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.