Seal-it® 220 SILICON-FR

Seal-it® 220 SILICON-FR is a certified-fireproof, high-quality, neutral-curing sealant for linear joints in structures, glazing and façades that is based on silicone technology and moisture-cures into a durable rubber that retains its elasticity.



  • Specially developed as a durable fireproof sealant for expansion joints in façade, floor, ceiling, roof and interior and exterior wall structures that effectively counteracts the spread of fire, smoke and toxic fumes.
  • Certified sealant for joints in buildings, homes and public spaces that are part of fireproof/fire-retardant structures/systems subject to strict fire safety requirements.
  • Fireproof top and bead seals in glazing systems in buildings, in accordance with NEN 3576/NPR 3577.
  • Fireproof seals for connecting, peripheral and dilation joints between/along building and façade components, such as windows, door and window frames, sections, prefab parts and panels.
  • Smoke and vapour-tight seals on connections in smoke exhaust duct systems.
  • Preventive sealing/filling of tube, pipe, line, cable and duct penetrations in floors, ceiling, roofs and interior and exterior façades and walls.
  • Fireproof joint seals in installation technology.


  • Durable, retains elasticity, maximum movement capacity of 25%.
  • Certified-fireproof, non-flammable, provides a secure barrier against the spread of smoke and fumes.
  • Excellent working and adhesion properties, on practically any porous or non-porous surface, without primer.
  • Neutral, low-odour, acid-free and non-shrink curing CE-certified silicone system.
  • Meets requirements for intruder-resistant glass, in accordance with the Secure Home Police Label (the “Politie Keurmerk veilig wonen”).
  • Good resistance to discolouration, UV, weather, water, moisture and ageing.
  • Non-corrosive to metals.
  • Compatible in direct contact with PVB-laminated glass and edge seals on insulating glass.
  • Free of solvents and organic plasticisers.
  • Very low emission: certified VOC emission class A+.

Application conditions

  • Application temperature (ambient and surface) between +5°C and +40°C.
  • On stable, compatible, dry, clean, uncontaminated, grease-free and dust-free surfaces.
  • Ensure proper joint dimensions, for proper absorption of any movements.
  • Use a suitable brush to remove any loose particles from the surface.
  • Degrease the surface properly using Seal-it® 510 CLEANER.
  • Seal-it® 220 SILICON-FR has a broad bonding spectrum, but highly porous surfaces should be pre-treated with Seal-it® 520 PRIMER and non-porous surfaces with minimal bonding should be treated with Seal-it® 525 Clean & Bond.
  • Use Seal-it® 550 FINISH to apply a smooth and tight finish, before skin formation.

Standard product line


12 x 600ml foil pack



RAL 7016






SI-XXX-XXXX-XXX = Article number.
Other colours and/or packaging on request.


  • EN 15651-1: F-EXT-INT 25HM
  • EN 13501-2:2007+A1:2009 LINEAR JOINTS (see EFECTIS test report)
  • EN 1366-4:2006 +A1-2010 LINEAR JOINTS (see EFECTIS test report)
  • VOC emission class A+

Technical support department

Connect Products has a state-of-the-art R&D laboratory, where experienced specialists continuously research and develop sealants, adhesives and PU foams. Customers and clients can have products researched, tested and developed by this department. You can also contact us for technical advice, tips, project support, warranty certificates, requests and other technical questions. We will be happy to assist you with high-quality technology.

Call us on +31 (0)183 731 400 or send us an e-mail.

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