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• Applications
• Performance
• Installation

Applications

• Can be installed into apertures within masonry or drywall partitions as a standalone seal for openings up to 1000mm x 1000mm or as part of a larger Rockwool Ablative Coated Batt seal (2 layers) to accommodate movement of services*
• A Softseal Lamella Double Coated Linear Strip comprises a low-density stone wool SoftSeal Lamella Strip, pre-coated with SoftSeal Flexible Coating
• The strip is supplied in strips 1200mm x 200mm x 100mm. The Firepro SoftSeal flexible Coating is also available in 5L, 10L and 20L tubs to enable site repairs to strips and SoftSeal Linear Joint Seals that may have been damaged during installation
• To complement the strip, Rockwool also supplies High Expansion Intumescent Sealant and Acoustic Intumescent Sealant. Strips is intended to reinstate the fire resistance, acoustic and air seal performances of concrete floors, masonry walls and dry wall systems when voids have been created for the passage of services. This includes pipes made of steel, cast iron, copper, polypropylene (PP), high density polythene (HDPE), PVC and ABS along with all sheathed cables up to 80mm and supported cable bundles up to 100mm

* Higher levels of service movement may be accommodated by installing the product under higher compression rates.

Performance

• Tested to the dedicated fire resistance standard for penetration seals BS EN1366-3 and shown to provide up to 2 hours* fire performance (EI20)
• CE marked to EAD 350454-00-1104.
• As part of the testing to BS EN 1366-4, SoftSeal was assessed for its movement capabilities, prior to conducting the fire test. The product was tested to accommodate movement (expansion and contraction) of +/-15%
• Tested to EN 10140 with the following results:
  • Rw 30 dB: When installed with 100mm thick SoftSeal Batt
  • Dn,e,w 40 dB: When installed with 100mm thick SoftSeal Batt Water permeability
  • Tested to EN 1027 - No leakage observed up to 300Pa
• Tested to EN 1026 up to 600Pa
• Leakage at 50Pa - 0.1/1.4 m³/m²/h

*Subject to application.

Installation

• Please see Product Data Sheet and Installation Guide for detailed installation instructions.
• Measure the height of the aperture to be sealed
• Cut the strips 15% bigger than the height of the void to be filled, so when installed they are under compression
• Ensure substrate is clean and free of dust and debris
• Apply a bead of Acoustic Intumescent Sealant around the internal edges of the aperture
• Install the strips horizontally, so that the lamellas are running horizontally
• Apply a bead of Acoustic Intumescent Sealant to butt joints between different sections of SoftSeal Coated Strip and around services
• High Expansion Intumescent Sealant shall be used around plastic pipes in accordance with Rockwool standard details
• Apply Firepro SoftSeal Flexible Coating to the face of all joints between SoftSeal Coated Strip and substrate/Ablative Coated Batt. N.B. Ensure adequate space above and below services to accommodate the SoftSeal product, for the movement levels required

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.