Seal-it® 226 SILICON-CS

Seal-it® 226 SILICON-CS is a high-quality, neutral-curing adhesive sealant that is particularly suited for expansion joints in construction, façades and glazing, is based on silicone technology and moisture-cures into a durable rubber that retains its elasticity.



  • Particularly suited for sealing of expansion joints (dilation, connecting, mechanical and peripheral joints) between concrete, stone, masonry, stainless and other steel, coated and anodised aluminium, plastic, PVC, wood and glass in construction, façades and glazing.
  • Joint seals in façades, floors, galleries, balconies, landings, terraces, staircases, storage rooms, parking garages, platforms, tunnels and roadway and bridge components.
  • Apply a durable elastic seal at connections along windows, door and window frames, sections, panels, board materials, profiles, frames and prefab and other construction, façade and glazing components.
  • Top and bead seals in glazing structures, in accordance with NEN 3576/NPR 3577.
  • Repair compound for glazing, façade and construction joints, based on silicone.
  • Ideal for sealing PMMA and polycarbonate sheet materials.


  • Durable, retains elasticity, maximum movement capacity of 25%.
  • Broad bonding spectrum, both porous and non-porous surfaces, without primer.
  • Excellent workability, smooth application, full body, slow skin formation.
  • Matt sealing surface, not glossy.
  • Neutral, MEKO-free, acid-free and non-shrink curing, CE-certified silicone system.
  • Non-corrosive to metals.
  • Meets requirements for intruder-resistant glass, in accordance with the Secure Home Police Label (the “Politie Keurmerk veilig wonen”).
  • Free of solvents and organic plasticisers.
  • Very low emission: certified VOC emission class A+.
  • Good resistance to discolouration, UV, weather, water, moisture, cleaning products and ageing.
  • Compatible in direct contact with PVB film on laminated glass and edge seals on double glazing.

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® 226 SILICON-CS 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


24 x 310ml cartridge

20 x 400ml foil packs

12 x 600ml foil packs


No standard stock

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


  • EN 15651-1: F-EXT-INT-CC
  • EN 15651-2: G-CC

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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