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AIRSTOP FLEX Adhesive Tape

AIRSTOP FLEX Adhesive Tape
Slightly transparent, multi purpose adhesive tape for airtight bonding. With an exceptionally age-resistant adhesive layer. It is suitable for use on almost all surfaces. Can be plastered over! Working temperature: from -5° C

Available dimensions

Article number Roll width Roll length Split liner Carton Inquiry List
3AFLEX50 50 mm 25 m - 8 rolls
3AFLEX60 60 mm 25 m - 8 rolls
3AFLEX75 75 mm 25 m 30 / 45 4 rolls
3FLEX100 100 mm 25 m 50 / 50 4 rolls
3FLEX150 150 mm 25 m 75 / 75 2 rolls
3FLEX200 200 mm 25 m 100 / 100 2 rolls

Field of application

  • adhesion of vapour retarders and airtight layers
  • joins of OSB and DWD (wood fibre board) panels, indoors and outdoors
  • joins and connections with wood, OSB, metal..
  • joint connections according to ÖNORM B 5320 and DIN 4108-7 are possible


  • slightly expandable
  • tear-resistant
  • can be plastered over and painted over
  • strong adhesion

Product data

To guarantee air and wind-tightness for the skin of a construction it must have the appropriate foils or panel materials providing a permanent seal at overlaps, gaps, joints and penetration points. AIRSTOP Flex Adhesive Tape is slightly expandable, tear-resistant, can be plastered over and painted over, has adhesive generously applied and is suitable for a variety of bonding applications.
Material composition
Slightly expandable synthetic base material, laminated airtight, acrylate adhesive
0.6 mm
Transparent white with green AIRSTOP imprin
5 m
Temperature resistance
-40 °C
Temperature resistance
100 °C
2 months
Working temperature
-5 °C
Working temperature
40 °C
Age resistance
30 years
Shelf life
2 years
Cool and dry

Processing guideline


Tear resistant system adhesive tapes with acrylate adhesive.


Max. 2 months; for higher requirements please use the OMEGA UVKB Facade tape or AIRSTOP ULTRA Tape.


AIRSTOP adhesive tapes perform the function of airtight and wind-tight sealing and not that of positive bonding. Vapour barriers and other films must always be secured by staples, laths or the like (mechanical).

Can be plastered over

The AIRSTOP FLEX adhesive tape can be plastered over and painted over.


When affixing the adhesive tape, the tape must be adhered over its entire surface to the substrate. The higher the contact pressure, the better the adhesion (AIRSTOP ROLL Pressing Roller, AIRSTOP RAK Plastic Squeegee). It is possible without problem to adhere the tape over itself or to adhere it crosswise. We recommend the AIRSTOP SPRINT Sealant or AIRSTOP DIMAROLL for plastered surfaces or very rough wood. The materials to be processed must be free of dust and grease, in addition to which the substrates must be dry and capable of bearing loads. In the case of doubt we recommend the pre-treatment of the substrate. (UNI Primer or BUBI LF Adhesive Primer).


AIRSTOP adhesive tapes are suitable for bonding from approx. –5 °C. Note please that surface condensate can result at lower temperatures even in the case of minimal changes in temperature. This acts like a separating layer and decreases the adhesion. Hot-stored tapes provide noticeably improved initial adhesion. (fan heaters, insulated containers)


Wood, wood-based panels (OSB, MDF, 3S-panels etc.), brick, plastics (smooth surface, free of silicones and waxes), metals free of oxides and rust etc.
Observe the system suggestions in accordance with our price list.


After the attachment of the AIRSTOP adhesive tape a so-called 'cross-linking process' takes place. This takes about 6 - 24 hours, depending on the temperature. Only then is the full adhesion attained.


Warm up the adhesive tape with a hair dryer and pull slowly on the adhesive tape. Remove the last residues with AIRSTOP ADC adhesive cleaner. Caution: do not rub for too long in one place on sensitive substrates. If necessary, wait 5 - 15 minutes and spray AIRSTOP ADC adhesive cleaner on once again and wipe it off.


Cool and dry in a closed cardboard box; do not stack rollers on top of one another without release paper in between.


Release paper and adhesive tape - domestic waste, waste tip


The acrylate adhesive employed does not contain any additives that cause the adhesive layer to become brittle and is therefore extremely resistant to aging.