813 Fenster Schaum

Gun-applied polyurethane foam
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Available for corporate customers

Product information and downloads

Sound insulation tested, ensuring suitability for window installation

813 Fensterschaum is the product of choice for sealing perimeter joints on windows and roller shutter boxes, as it does not continue to expand after application. Since the one-component polyurethane foam adheres to almost all substrates and has excellent thermal and sound insulation characteristics, it is also ideal to use for foaming in structural connections compliant with applicable standards. The special valve makes it easier to work with a foam gun. The cured foam is semi-hard, predominantly closed-cell, and resistant to rot, moisture and temperatures between -40°C and +80°C.

Effective thermal insulation
Neat dosing
Provides successful soundproofing of joints


  • Mostly closed-cell
  • Heat-insulating
  • Fills gaps
  • Chemical-resistant
  • Compatible with a wide range of materials
  • Adheres to moist substrates
  • Safety valve
  • Suitable for use in permanently wet areas
  • Noise-abating
  • No delayed expansion after application
  • Low-emitting
  • Odourless
  • Compatible with bitumen


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

Technical data

Yield (Building material class E) / (Building material class F)
Cuttable (Building material class E) / (Building material class F)
Tack free (Building material class E) / (Building material class F)


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.
How to apply polyurethane foam properly.
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Portrait Aron Wörther Ramsauer