Seal-it® 730 BUTYLENE SEALANT is a durable 1-part sealant that retains its plasticity and is based on polybutene and vegetable oils.



  • Specially developed for joints with limited movement in construction, refrigeration, automotive and air duct applications.
  • For installation of sandwich panels, corrugated sheet and sections.
  • For metal sheet overlaps and connections in shipbuilding, yacht building and bodywork construction.
  • Sealing of flanged seams in air ducts and installation of finishing mouldings and strips.


  • Excellent adhesion without primer on practically all surfaces.
  • Resistant to water and the elements.
  • Excellently paintable with synthetic and emulsion paint systems.
  • Forms a skin after application. The core does not harden.

Application conditions

  • Application temperature (ambient and surface) between +10°C and +40°C.
  • On stable, compatible, dry, uncontaminated, grease-free and dust-free surfaces.
  • Use a suitable brush to remove any loose particles from the surface.
  • Degrease the surface properly using Seal-it® 510 CLEANER.

Standard product line


12 x 600ml foil pack (blank)


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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