Seal-it® 475 PU-FOAM HAND

Seal-it® 475 PU-FOAM HAND is a durable, fast-curing 1k insulation and installation foam, specially developed for sealing and filling joints, connections, seams, holes and adjustment and installation spaces between various building components, and that moisture-cures into a durable foam mass.



  • Specially designed for sealing, insulation and filling of connecting joints, seams, cracks and holes in interior and exterior façades, cavity walls, partitions and ceiling, roof and floor components.
  • Seal, insulate and fill pipe and line penetrations through ceilings, roofs, floors and interior and exterior walls.
  • Seal, insulate and fill adjustment and installation spaces around prefab components, sections and door and window frames.
  • Adhere, install, insulate, fill and seal different insulation panels/boards and panel materials together in the construction of roofs, façades, floors and interior and exterior walls.
  • Seal, insulate and fill connections in ridges, dormers, chimneys, air exhaust ducts and bay windows.
  • Fill, seal and insulate hollow spaces/holes in roofs, floors, façades, ceilings and interior and exterior walls.


  • Adheres excellently to many materials, such as stone, concrete, wood, gypsum, stucco, masonry, metal and various plastics, such as Styropor, hard PU foam, polyester and hard PVC.
  • High filling capacity, foams during the curing process.
  • High ultimate output, approx. 40 litres at free expansion.
  • Versatile: fills, seals, adheres, installs and insulates.
  • Very low emission: certified VOC emission class A+.
  • Excellent acoustic and insulating properties.
  • Fast-curing, easy to work with and cuttable fine-celled polyurethane foam.
  • Lasting resistance to weather, water, moisture and ageing; does not rot.
  • Excellent resistance to hot and cold conditions, water and many chemicals.

Application conditions

  • Application temperature (ambient and surface) between +5°C and +40°C.
  • On stable, compatible, clean, uncontaminated, and grease-free surfaces.
  • Use a suitable brush to remove any loose particles from the surface.
  • Degrease the surface properly using Seal-it® 510 CLEANER.
  • Give the canister approx. 20 good shakes before use.
  • If necessary, use a plant sprayer to lightly moisten the surface in advance.
  • Cut off fully cured excess Seal-it® 475 PU-FOAM HAND with a knife and/or trowel.

Standard product line


12 x 750ml canister



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


  • DIN 4102-1: B3
  • 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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