Seal-it® 477 PU-FIXFOAM

Seal-it® 477 PU-FIXFOAM is a durable, ready-mixed PU adhesive specially developed for the indoor and outdoor adhering/installing of acoustic and insulation panel materials and other plates and panels that moisture-cures to a strong seal.



  • Developed specifically for adhering and installing acoustic and insulation panel materials.
  • Suitable for adhering and installing various types of finishing and other plates and panels.
  • Perfect for sealing joints between insulation materials and window and door frames.


  • Ready-mixed and fast-curing adhesive and installation system.
  • For indoor and outdoor use.
  • Adheres, installs, fills (foams up slightly) and seals.
  • Generates strong adhesion on numerous surfaces, including masonry and plasterwork, concrete, plasterboard, rockwool, wood, metal, EPS, EPS-P, XPS, PUR and PIR.
  • Fire class B2 according to DIN 4102-1.
  • Very low emission: certified according to VOC emission class A+.
  • User-friendly, fast, easy, dust-free and zero-energy application that requires no cleaning.
  • High thermal and acoustic insulation value.
  • Efficient, very low/economical adhesive use when used with the Seal-it® PUR gun.
  • Excellent resistance to hot and cold conditions, water and numerous chemicals.
  • Long-lasting resistance to weather, moisture, water and ageing; does not rot.

Application conditions

  • Application temperature (ambient and surface) between -5°C and +30°C.
  • On compatible, stable, clean, uncontaminated and grease-free surfaces.
  • If necessary, lightly pre-moisten the surface with water, for example, by using a plant sprayer.
  • 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.
  • Cut off fully cured excess Seal-it® 477 PU-FIXFOAM with a knife and/or trowel.
  • Before use, grease the threading of the gun adapter with Vaseline, PTFE and/or silicone spray to prevent the canister from sticking to the PUR gun.
  • After attaching the canister to the gun, the spray speed and output volume can be adjusted using the setscrew on the back of the gun in order to ensure efficient/economic use.
  • After use, tighten the setscrew on the PUR gun to prevent activation of the gun.
  • Always leave the canister in the PUR gun until completely empty.
  • Remove the empty canister by holding in the trigger while unscrewing it in order to expel any remaining propellant gas.
  • Attach a full canister to the PUR gun directly and/or clean the PUR gun thoroughly using Seal-it® 450 PUR CLEANER.
  • If the PUR gun is not working or not working properly, put Seal-it® 450 PUR CLEANER on the gun, spray through several times and let it set well for approx. 15 min. Spray through again and then remove the Seal-it® 450 PUR CLEANER canister.

Standard product line


12 x 750ml canister



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


  • 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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