815 Elast Schaum

Gun-applied polyurethane foam
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Available for corporate customers

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Exceptionally elastic for window and door installation

Thanks to its ultra-high elasticity, our 815 Elast Schaum is an ideal material for absorbing movements. This makes the product perfectly suitable for foaming in gaps in roof and wall structures, installing windows, and constructing log buildings. Its excellent thermal and sound insulation characteristics make it a handy material for filling perimeter joints. When applied with a foam gun, 815 Elast Schaum’s special valve allows for extra-clean and controlled backfilling. Once cured, the grey foam is predominantly closed-cell and highly resilient – plus, it can withstand temperatures from -40°C to +80°C. 

Fine-pored cell structure
Provides successful soundproofing of joints
Highly effective at absorbing motion thanks to elastic properties


  • Heat-insulating
  • Fills gaps
  • Chemical-resistant
  • Compatible with a wide range of materials
  • Adheres to moist substrates
  • Safety valve
  • Elastic
  • Cell structure – fine
  • Suitable for use in permanently wet areas
  • Noise-abating
  • Low-emitting
  • Odourless
  • Compatible with bitumen


  • Sound reduction index of joints (IFT Rosenheim SC-01 guidelines)
  • EC1
  • EC1 Plus
  • ÖNORM B 5320

Technical data

Cuttable (Building material class E) / (Building material class F)
(20mm section, dry application): E: after approx. 37 min
Processing temperature (substrate, environment)
E: -10°C to +30°C
Storage life
(in a cool and dry place): 15 months
Tack free (Building material class E) / (Building material class F)
E: (dry application): approx. 8 min.
(free expansion): 13 - 15 kg/m³


Main applications

Sealing windows and doors on the outside
Long-lasting perimeter joints in outdoor areas require resilient and elastic sealants.
Illustration Nahaufnahme Fenstereck mit grün markierten Dichtungen
Sealing windows and doors from the inside
Low emitting and elastic sealants allow for air-tight joints, preventing draughts and mould.
Illustration Blockhaus mit Fenster
Sealing joints in log buildings
Sandable sealants are suitable for joint work on log buildings.
Filling wall openings
A safety valve makes it easier to carry out the foaming process in cavities using polyurethane foams.
How to apply polyurethane foam properly.
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Portrait Aron Wörther Ramsauer