Seal-it® 315 FACADE-LM

Seal-it® 315 FACADE-LM is a highly elastic, durable, high-quality sealant for expansion joints in façades and floors, that is based on hybrid technology and moisture-cures into a durable rubber that retains its high elasticity.



  • Particularly suited for sealing of expansion joints (dilation, connecting, mechanical and peripheral joints), such as between/along concrete, natural and other stone, masonry, stainless and other steel, coated and anodised aluminium, plastic, PVC, wood, glass and more.
  • 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 to façade components, such as between/along windows, door and window frames, sections, panels, board materials, prefab components and more.
  • Natural stone seals, such as on marble, granite, slate, hard stone and other porous (absorbent) stone types, such as aerated or non-aerated concrete, sand-lime brick, masonry, brick and other porous building materials, such as untreated wood.
  • Top and bead seals in laminated and insulating glass, in accordance with NEN 3576/NPR 3577.
  • Apply durable, highly elastic seals between concrete, wood, plastic and metal parts.
  • Repair compound for maintenance on MSP/hybrid expansion joints in the construction and industrial sectors.


  • Durable, retains elasticity, maximum movement capacity of 25%.
  • Excellent adhesion without primer on practically all surfaces, even moist ones.
  • User-friendly and versatile applications in building structures and glazing structures.
  • Paintable with water-based paint systems.
  • Meets requirements for intruder-resistant glass, in accordance with the Secure Home Police Label (the “Politie Keurmerk veilig wonen”).
  • Free of isocyanate, solvents and silicone.
  • Very low emission: certified EMICODE EC1 PLUS.
  • Good resistance to discolouration, UV, weather, water, moisture and ageing.
  • Non-corrosive to metals.
  • No staining or bleeding on porous stone types or other materials.
  • Low-odour, adhesive-free, acid-free and non-shrink curing CE-certified hybrid system.

Application conditions

  • Application temperature (ambient and surface) between +5°C and +40°C.
  • On clean, uncontaminated, dry, stable, compatible, dust-free and grease-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® 315 FACADE-LM 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 7021


Stone gray


Concrete grey


Medium grey







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


  • EN 15651-1: F-EXT-INT-CC-25LM

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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