Seal-it® 217 SILICON-EPDM

Seal-it® 217 SILICON-EPDM is a high-quality, professional, neutral-curing adhesive sealant that is particularly suited for EPDM material, is based on silicone technology and moisture-cures into a durable rubber that retains its elasticity.



  • Specially developed to adhere EPDM material to different surfaces.
  • Seal connecting and dilation joints between concrete, stone, masonry, plastic, polycarbonate, PVC, acrylic, metal, stainless steel, wood, coated and anodised aluminium, composite and glass in façade, ceiling, roof and interior and exterior wall structures.
  • Adhesion of EPDM to EPDM and to other building materials.
  • Seal building and façade components, such as along windows, door and window frames, sections, panels, board materials and prefab components.


  • Durable, retains elasticity, maximum movement capacity of 25%.
  • Excellent adhesion to most building surfaces, without primer.
  • Neutral, acid-free, low-odour and non-shrink curing silicone system.
  • Good resistance to discolouration, weather and ageing.
  • Optimal working properties, smooth application and no stringing.
  • Non-corrosive to metals.
  • Free of solvents and organic plasticisers.

Application conditions

  • Application temperature (ambient and surface) between +5°C and +40°C.
  • On stable, compatible, dry, 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® 217 SILICON-EPDM 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.


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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