Sealing tape for rectangular ventilation ducts

R-FOLL presents a self-adhesive polyethylene tape of closed-pore structure for sealing joints between ventilation ducts and fittings with rectangular cross-sections.

Sealing tape used in a rectangular ventilation duct

taśma służąca do uszczelnienia połączeń przewodów

Foam advantages:

  • Seals joints of rectangular ventilation ducts

  • Smooths away unevenness

  • Damps vibrations

  • Resistant to:
    - ageing
    - chemical impacts
    - reactions with organic substances

  • Thermal resistance: -40 °C to +90 °C

  • Easy and quick installation, place of application remains clean due to the lack of a paper interlayer.


The tape seals contact points between rectangular ventilation ducts and fittings. It effectively damps vibrations resulting from high wind loads.

taśma służąca do uszczelnienia połączeń przewodów
Technical data
Standard size 10, 15, 20 mm
Standard lengths 10 , 15, 20 running metres (depending on tape thickness)
Hot melt glue 33-35 g/m2
Foam density 30 kg /m3
Total tape thickness 4, 5, 6, 7 mm +/- 8%
Thermal resistance (-40) (+90) oC
Tensile strength min 1,4 N/cm
Strip width tolerance max } 1,5 mm
Strip length tolerance max – 2%

Installation procedure:

  • Clean dust and other contaminants from the duct surface where the tape is to be applied.
  • Choose the appropriate tape width according to the rectangular ventilation duct.
  • Apply the sealing tape peripherally at the joint with another duct/fitting.

NOTE! Tape installation at a temperature above +5oC