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SikaMembran Active SB window connection membrane 100 mm × 25 m

Description

The SikaMembran Active SB is a connection membrane for the window joint. It has a carrier fleece made of polypropylene and a functional film made of polyethylene copolymer, is self-adhesive on one side and can be plastered over.

Benefits

  • Self-adhesive on one side, no additional adhesive needed on the frame
  • Can be plastered over, the connection disappears in the reveal
  • Carrier fleece made of polypropylene, tear-resistant and plaster-adhering
  • Thickness of about 0.45 mm, adds no bulk in the joint
  • 100 mm width on a 25 m roll

Areas of application

  • Connection of windows and doors in line with RAL installation
  • Sealing the joint between frame and building structure
  • Inside and outside connections in window construction
  • Refurbishment of existing window connections

Product details

Window connection membrane, colour black, width 100 mm, roll length 25 m, thickness about 0.45 mm. Carrier fleece made of polypropylene, functional film made of polyethylene copolymer, self-adhesive strip made of polyacrylate. Building material class E.

The frame must be clean, dry and free of grease. Apply the self-adhesive strip to the frame, unroll the membrane without wrinkles and fold it neatly into the corners instead of cutting – every cut is a possible leak.

Technical data

Area of use: Exterior, Interior
Colour: black
Material: Polyethylene (PE), Polypropylene (PP)
Pack size: Width: 100mm Length: 25m
Technical data
Dimensions: 100 mm x 25 m
Thickness: 0,45 mm
Product type: Window connection membrane
Standards
Building material class: E
Use
Field of use: Indoors, outdoors
Merchandise group: Tapes & films

Manufacturer information

Manufacturer information pursuant to Art. 19 EU GPSR

Postal address Sika Deutschland CH AG & Co KG
Kornwestheimer Straße 103-107
70439 Stuttgart
Germany

Electronic address info@de.sika.com

All products by Sika

Information as of: 2026-09-18

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For your project

These products go with it

Project: Seal windows and doors to RAL guidelines

Execute the connection joint in three layers: airtight inside (acrylic A710 or interior tape), insulated in the middle (assembly foam or multifunctional tape), driving-rain-tight and vapour-permeable outside (S730 or exterior membrane). Inside must always be tighter than outside.

  1. Apply

    • Part of the system Insulates the middle layer; can only be applied with a foam gun
      €11.95 €15.93 / 1 Litre
    • Alternative One tape for all three layers – then without A710 and S730
      €23.29 €2.91 / 1 Metre
    • Alternative One tape for all three layers – then without A710 and S730. Choose the tape dimension according to window installation depth and joint width
      €23.99 €6.00 / 1 Metre
    • Alternative Narrow version (joint 4–30 mm) only for the lower connection – instead of the wide tape, not in addition. Choose the dimension according to the measured joint width
      €13.49 €3.37 / 1 Metre
  2. Tools & accessories

  3. Finish & care

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